diff --git a/src/data/kotlin/ru/dbotthepony/mc/otm/datagen/lang/English.kt b/src/data/kotlin/ru/dbotthepony/mc/otm/datagen/lang/English.kt
index 8755aca87..ff508b9cb 100644
--- a/src/data/kotlin/ru/dbotthepony/mc/otm/datagen/lang/English.kt
+++ b/src/data/kotlin/ru/dbotthepony/mc/otm/datagen/lang/English.kt
@@ -261,6 +261,8 @@ private fun misc(provider: MatteryLanguageProvider) {
 		misc("suffix.exa", "%s E%s")
 		misc("suffix.zetta", "%s Z%s")
 		misc("suffix.yotta", "%s Y%s")
+		misc("suffix.ronna", "%s R%s")
+		misc("suffix.quetta", "%s Q%s")
 
 		misc("suffix.deci", "%s d%s")
 		misc("suffix.centi", "%s c%s")
@@ -282,6 +284,8 @@ private fun misc(provider: MatteryLanguageProvider) {
 		misc("suffix_concise.exa", "%sE")
 		misc("suffix_concise.zetta", "%sZ")
 		misc("suffix_concise.yotta", "%sY")
+		misc("suffix_concise.ronna", "%sR")
+		misc("suffix_concise.quetta", "%sQ")
 
 		misc("suffix_concise.deci", "%sd")
 		misc("suffix_concise.centi", "%sc")
@@ -302,6 +306,9 @@ private fun misc(provider: MatteryLanguageProvider) {
 		misc("suffix_raw.exa", "E")
 		misc("suffix_raw.zetta", "Z")
 		misc("suffix_raw.yotta", "Y")
+		misc("suffix_raw.ronna", "R")
+		misc("suffix_raw.quetta", "Q")
+
 		misc("suffix_raw.deci", "d")
 		misc("suffix_raw.centi", "c")
 		misc("suffix_raw.milli", "m")
diff --git a/src/data/kotlin/ru/dbotthepony/mc/otm/datagen/lang/Russian.kt b/src/data/kotlin/ru/dbotthepony/mc/otm/datagen/lang/Russian.kt
index d45ac6c92..4a059c766 100644
--- a/src/data/kotlin/ru/dbotthepony/mc/otm/datagen/lang/Russian.kt
+++ b/src/data/kotlin/ru/dbotthepony/mc/otm/datagen/lang/Russian.kt
@@ -269,6 +269,8 @@ private fun misc(provider: MatteryLanguageProvider) {
 		misc("suffix.exa", "%s Э%s")
 		misc("suffix.zetta", "%s З%s")
 		misc("suffix.yotta", "%s И%s")
+		misc("suffix.ronna", "%s Рн%s")
+		misc("suffix.quetta", "%s Кв%s")
 
 		misc("suffix.deci", "%s д%s")
 		misc("suffix.centi", "%s с%s")
@@ -290,6 +292,9 @@ private fun misc(provider: MatteryLanguageProvider) {
 		misc("suffix_concise.exa", "%sЭ")
 		misc("suffix_concise.zetta", "%sЗ")
 		misc("suffix_concise.yotta", "%sИ")
+		misc("suffix_concise.ronna", "%sРн")
+		misc("suffix_concise.quetta", "%sКв")
+
 		misc("suffix_concise.deci", "%sд")
 		misc("suffix_concise.centi", "%sс")
 		misc("suffix_concise.milli", "%sм")
@@ -309,6 +314,9 @@ private fun misc(provider: MatteryLanguageProvider) {
 		misc("suffix_raw.exa", "Э")
 		misc("suffix_raw.zetta", "З")
 		misc("suffix_raw.yotta", "И")
+		misc("suffix_raw.ronna", "Рн")
+		misc("suffix_raw.quetta", "Кв")
+
 		misc("suffix_raw.deci", "д")
 		misc("suffix_raw.centi", "с")
 		misc("suffix_raw.milli", "м")
diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/cable/EnergyCableGraph.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/cable/EnergyCableGraph.kt
index 13e60b2b5..b7fefc158 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/cable/EnergyCableGraph.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/cable/EnergyCableGraph.kt
@@ -1,11 +1,8 @@
 package ru.dbotthepony.mc.otm.block.entity.cable
 
-import it.unimi.dsi.fastutil.ints.IntLists
-import it.unimi.dsi.fastutil.objects.ObjectLinkedOpenHashSet
-import it.unimi.dsi.fastutil.objects.ObjectOpenHashSet
 import it.unimi.dsi.fastutil.objects.Reference2ObjectOpenHashMap
 import it.unimi.dsi.fastutil.objects.ReferenceArraySet
-import it.unimi.dsi.fastutil.objects.ReferenceOpenHashSet
+import it.unimi.dsi.fastutil.objects.ReferenceLinkedOpenHashSet
 import net.minecraft.core.BlockPos
 import org.apache.logging.log4j.LogManager
 import ru.dbotthepony.mc.otm.SERVER_IS_LIVE
@@ -19,6 +16,7 @@ import ru.dbotthepony.mc.otm.onceServer
 import java.util.*
 import kotlin.collections.ArrayList
 import kotlin.collections.HashSet
+import kotlin.collections.LinkedHashSet
 import kotlin.math.ln
 
 class EnergyCableGraph : GraphNodeList<EnergyCableBlockEntity.Node, EnergyCableGraph>() {
@@ -69,7 +67,7 @@ class EnergyCableGraph : GraphNodeList<EnergyCableBlockEntity.Node, EnergyCableG
 	}
 
 	class SegmentPath(private val a: BlockPos, private val b: BlockPos) {
-		val segments = ObjectLinkedOpenHashSet<Segment>()
+		val segments = LinkedHashSet<Segment>()
 		private var shortCircuit = false
 		private var lastTickTransfers = 0
 		private var lastTick = 0
@@ -134,13 +132,25 @@ class EnergyCableGraph : GraphNodeList<EnergyCableBlockEntity.Node, EnergyCableG
 			nodes.add(node)
 		}
 
-		private val nodes = ObjectLinkedOpenHashSet<EnergyCableBlockEntity.Node>()
-		private val paths = ReferenceOpenHashSet<SegmentPath>()
+		private val nodes = LinkedHashSet<EnergyCableBlockEntity.Node>()
+		private var paths = ReferenceLinkedOpenHashSet<SegmentPath>()
 
 		operator fun contains(node: EnergyCableBlockEntity.Node): Boolean {
 			return node in nodes
 		}
 
+		fun missingNodes(from: Collection<EnergyCableBlockEntity.Node>): List<EnergyCableBlockEntity.Node> {
+			val missing = ArrayList<EnergyCableBlockEntity.Node>()
+
+			this.nodes.forEach {
+				if (it !in from) {
+					missing.add(it)
+				}
+			}
+
+			return missing
+		}
+
 		var throughput = Decimal.ZERO
 			private set
 
@@ -192,9 +202,9 @@ class EnergyCableGraph : GraphNodeList<EnergyCableBlockEntity.Node, EnergyCableG
 			lastPoweredSwitchFrequency = (lastPoweredSwitchFrequency shl 1) or (if (changed) 1 else 0)
 
 			if (hasBlockstateTimer && SERVER_IS_LIVE) {
-				var i = 20
+				var i = 30
 
-				for (index in 0 .. 16) {
+				for (index in 0 .. 26) {
 					if (lastPoweredSwitchFrequency and (1 shl index) != 0) {
 						i--
 					}
@@ -284,8 +294,9 @@ class EnergyCableGraph : GraphNodeList<EnergyCableBlockEntity.Node, EnergyCableG
 		}
 
 		fun add(path: SegmentPath) {
-			check(paths.add(path)) { "Path $path shouldn't contain $this" }
-			check(path.segments.add(this)) { "Path set and Segment disagree whenever $this is absent from $path" }
+			if (paths.add(path)) {
+				check(path.segments.add(this)) { "Path set and Segment disagree whenever $this is absent from $path" }
+			}
 		}
 
 		fun remove(path: SegmentPath) {
@@ -295,23 +306,23 @@ class EnergyCableGraph : GraphNodeList<EnergyCableBlockEntity.Node, EnergyCableG
 
 		// breaks "instant snapshots" of segments atm
 		// shouldn't cause major gameplay issues though
-		fun split(): List<Segment> {
-			if (nodes.isEmpty()) {
-				throw IllegalStateException("Empty segment somehow?")
-			} else if (nodes.size == 1) {
+		fun split(nodes: Collection<EnergyCableBlockEntity.Node>): List<Segment> {
+			for (node in nodes)
+				require(node in this.nodes) { "$node does not belong to $this" }
+
+			if (this.nodes.size == 1) {
 				return listOf(this)
 			} else {
-				lastPoweredStatus = 0
-				val list = ArrayList(nodes)
-				val itr = list.iterator()
-				itr.next()
 				val result = ArrayList<Segment>()
 				result.add(this)
 
-				for (v in itr) {
+				for (v in nodes) {
 					v.segment = Segment()
+					v.segment.throughput = v.energyThroughput
+					v.segment.throughputKnown = true
 					v.segment.transferredLastTick = transferredLastTick
-					v.segment.paths.addAll(paths)
+					v.segment.lastPoweredStatus = lastPoweredStatus
+					v.segment.paths = paths.clone()
 					paths.forEach { it.segments.add(v.segment) }
 					result.add(v.segment)
 				}
@@ -391,7 +402,7 @@ class EnergyCableGraph : GraphNodeList<EnergyCableBlockEntity.Node, EnergyCableG
 
 			if (first.node === b) {
 				// solution found
-				val solution = ArrayList<EnergyCableBlockEntity.Node>()
+				val solution = LinkedHashSet<EnergyCableBlockEntity.Node>()
 
 				var last = first.parent
 				solution.add(first.node)
@@ -402,10 +413,23 @@ class EnergyCableGraph : GraphNodeList<EnergyCableBlockEntity.Node, EnergyCableG
 				}
 
 				val touchedSegments = ReferenceArraySet<Segment>()
-				solution.forEach { touchedSegments.addAll(it.segment.split()) }
+
+				for (it in solution) {
+					if (it.segment in touchedSegments)
+						continue
+
+					val diff = it.segment.missingNodes(solution)
+
+					// segment satisfies new constraints
+					if (diff.isEmpty()) {
+						touchedSegments.add(it.segment)
+					} else {
+						touchedSegments.addAll(it.segment.split(diff))
+					}
+				}
+
 				val path = SegmentPath(a.blockEntity.blockPos, b.blockEntity.blockPos)
 				solution.forEach { it.segment.add(path) }
-
 				touchedSegments.forEach { it.tryCombine(touchedSegments) }
 
 				return path
diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/core/util/SiPrefix.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/core/util/SiPrefix.kt
index 0b21620a0..7f4507279 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/core/util/SiPrefix.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/core/util/SiPrefix.kt
@@ -9,14 +9,14 @@ import java.math.BigInteger
 import kotlin.math.absoluteValue
 
 enum class SiPrefix(val power: Int, val symbol: String) {
-	YOCTO(-8,   "y"),
-	ZEPTO(-7,   "z"),
-	ATTO (-6,   "a"),
-	FEMTO(-5,   "f"),
-	PICO (-4,   "p"),
-	NANO (-3,   "n"),
-	MICRO(-2,   "μ"),
-	MILLI(-1,   "m"),
+	YOCTO (-8,   "y"),
+	ZEPTO (-7,   "z"),
+	ATTO  (-6,   "a"),
+	FEMTO (-5,   "f"),
+	PICO  (-4,   "p"),
+	NANO  (-3,   "n"),
+	MICRO (-2,   "μ"),
+	MILLI (-1,   "m"),
 
 	NONE(0,      "") {
 		override val isEmpty: Boolean
@@ -26,14 +26,16 @@ enum class SiPrefix(val power: Int, val symbol: String) {
 			get() = 0
 	},
 
-	KILO (1,    "k"),
-	MEGA (2,    "M"),
-	GIGA (3,    "G"),
-	TERA (4,    "T"),
-	PETA (5,    "P"),
-	EXA  (6,    "E"),
-	ZETTA(7,    "Z"),
-	YOTTA(8,    "Y");
+	KILO  (1,    "k"),
+	MEGA  (2,    "M"),
+	GIGA  (3,    "G"),
+	TERA  (4,    "T"),
+	PETA  (5,    "P"),
+	EXA   (6,    "E"),
+	ZETTA (7,    "Z"),
+	YOTTA (8,    "Y"),
+	RONNA (9,    "R"),
+	QUETTA(10,   "Q");
 
 	open val isEmpty: Boolean get() = false