diff --git a/ThermalDynamics/Data/CubeBlocks/Gauge_LG_CoolantPipe_Straight_Sink.sbc b/ThermalDynamics/Data/CubeBlocks/Gauge_LG_CoolantPipe_Straight_SingleSink.sbc
similarity index 90%
rename from ThermalDynamics/Data/CubeBlocks/Gauge_LG_CoolantPipe_Straight_Sink.sbc
rename to ThermalDynamics/Data/CubeBlocks/Gauge_LG_CoolantPipe_Straight_SingleSink.sbc
index 8ef6154..4467ede 100644
--- a/ThermalDynamics/Data/CubeBlocks/Gauge_LG_CoolantPipe_Straight_Sink.sbc
+++ b/ThermalDynamics/Data/CubeBlocks/Gauge_LG_CoolantPipe_Straight_SingleSink.sbc
@@ -4,9 +4,9 @@
 		<Definition>
 			<Id>
 				<TypeId>CubeBlock</TypeId>
-				<SubtypeId>Gauge_LG_CoolantPipe_Straight_Sink</SubtypeId>
+				<SubtypeId>Gauge_LG_CoolantPipe_Straight_SingleSink</SubtypeId>
 			</Id>
-			<DisplayName>{LOC:DisplayName_Gauge_LG_CoolantPipe_Straight}</DisplayName>
+			<DisplayName>{LOC:DisplayName_Gauge_LG_CoolantPipe_Straight_SingleSink}</DisplayName>
 			<Description>{LOC:Description_Gauge_CoolantPipe}</Description>
 			<Icon>Textures\GUI\Icons\Gauge\LG_CoolantPipeStraight_OneSink.dds</Icon>
 			<CubeSize>Large</CubeSize>
diff --git a/ThermalDynamics/Data/Scripts/Thermodynamics/Session.cs b/ThermalDynamics/Data/Scripts/Thermodynamics/Session.cs
index 683e2f4..63dad6f 100644
--- a/ThermalDynamics/Data/Scripts/Thermodynamics/Session.cs
+++ b/ThermalDynamics/Data/Scripts/Thermodynamics/Session.cs
@@ -29,7 +29,6 @@ public class Session : MySessionComponentBase
 
         private static StringBuilder ToolText = new StringBuilder($"");
         private static StringBuilder GridText = new StringBuilder($"");
-        private static Color GridTempColor = Color.Blue;
 
         public Session()
         {
@@ -207,16 +206,21 @@ private void DrawGridHud()
         {
             GridText.Clear();
             IMyCubeBlock controlledBlock = MyAPIGateway.Session?.Player?.Controller?.ControlledEntity as IMyCubeBlock;
-
             if (controlledBlock == null) return;
 
             MyCubeGrid grid = controlledBlock.CubeGrid as MyCubeGrid;
+            if (grid == null) return;
             ThermalGrid tg = grid.GameLogic.GetAs<ThermalGrid>();
+            if (tg == null) return;
 
-            hudStatusGrid.InitialColor = ColorExtensions.HSVtoColor(Tools.GetTemperatureColor(tg.HottestBlock.Temperature));
+            GridText.Append($"Ambient: {Tools.KelvinToCelsiusString(tg.FrameAmbientTemprature)}\n");
 
             if (tg.HottestBlock != null) 
             {
+                if (hudStatusGrid != null) 
+                {
+                    hudStatusGrid.InitialColor = ColorExtensions.HSVtoColor(Tools.GetTemperatureColor(tg.HottestBlock.Temperature));
+                }
                 GridText.Append($"Peak Temp: {Tools.KelvinToCelsiusString(tg.HottestBlock.Temperature)}\n");
             }
 
diff --git a/ThermalDynamics/Data/Scripts/Thermodynamics/ThermalGridLoop.cs b/ThermalDynamics/Data/Scripts/Thermodynamics/ThermalGridLoop.cs
index 9a7a2f5..257d0a9 100644
--- a/ThermalDynamics/Data/Scripts/Thermodynamics/ThermalGridLoop.cs
+++ b/ThermalDynamics/Data/Scripts/Thermodynamics/ThermalGridLoop.cs
@@ -13,7 +13,7 @@ public partial class ThermalGrid : MyGameLogicComponent
         {
             { "Gauge_LG_CoolantPipe_Straight", new Vector3I[0] },
             { "Gauge_LG_CoolantPipe_Straight_DoubleSink", new Vector3I[] { Vector3I.Left, Vector3I.Right } },
-            { "Gauge_LG_CoolantPipe_Straight_Sink", new Vector3I[] { Vector3I.Right } },
+            { "Gauge_LG_CoolantPipe_Straight_SingleSink", new Vector3I[] { Vector3I.Right } },
             { "Gauge_LG_CoolantPipe_Corner", new Vector3I[0]  },
             { "Gauge_LG_CoolantPipe_Corner_DoubleSink", new Vector3I[] { Vector3I.Backward, Vector3I.Right } },
             { "Gauge_LG_CoolantPipe_Corner_SingleSink", new Vector3I[] { Vector3I.Up } },
@@ -21,7 +21,7 @@ public partial class ThermalGrid : MyGameLogicComponent
             
             { "Gauge_SG_CoolantPipe_Straight", new Vector3I[0] },
             { "Gauge_SG_CoolantPipe_Straight_DoubleSink", new Vector3I[] { Vector3I.Left, Vector3I.Right } },
-            { "Gauge_SG_CoolantPipe_Straight_Sink", new Vector3I[] { Vector3I.Right } },
+            { "Gauge_SG_CoolantPipe_Straight_SingleSink", new Vector3I[] { Vector3I.Right } },
             { "Gauge_SG_CoolantPipe_Corner", new Vector3I[0]  },
             { "Gauge_SG_CoolantPipe_Corner_DoubleSink", new Vector3I[] { Vector3I.Backward, Vector3I.Right } },
             { "Gauge_SG_CoolantPipe_Corner_SingleSink", new Vector3I[] { Vector3I.Up } },
@@ -32,19 +32,19 @@ public partial class ThermalGrid : MyGameLogicComponent
         {
             { "Gauge_LG_CoolantPipe_Straight", new Vector3I[] { Vector3I.Forward, Vector3I.Backward } },
             { "Gauge_LG_CoolantPipe_Straight_DoubleSink", new Vector3I[] { Vector3I.Forward, Vector3I.Backward } },
-            { "Gauge_LG_CoolantPipe_Straight_Sink", new Vector3I[] { Vector3I.Forward, Vector3I.Backward } },
+            { "Gauge_LG_CoolantPipe_Straight_SingleSink", new Vector3I[] { Vector3I.Forward, Vector3I.Backward } },
             { "Gauge_LG_CoolantPipe_Corner", new Vector3I[] { Vector3I.Forward, Vector3I.Left } },
             { "Gauge_LG_CoolantPipe_Corner_DoubleSink", new Vector3I[] { Vector3I.Forward, Vector3I.Left } },
             { "Gauge_LG_CoolantPipe_Corner_SingleSink", new Vector3I[] { Vector3I.Forward, Vector3I.Left } },
-            { "Gauge_LG_CoolantPump", new Vector3I[] { Vector3I.Forward, Vector3I.Backward }  },
+            { "Gauge_LG_CoolantPump", new Vector3I[] { Vector3I.Forward, Vector3I.Backward } },
 
             { "Gauge_SG_CoolantPipe_Straight", new Vector3I[] { Vector3I.Forward, Vector3I.Backward } },
             { "Gauge_SG_CoolantPipe_Straight_DoubleSink", new Vector3I[] { Vector3I.Forward, Vector3I.Backward } },
-            { "Gauge_SG_CoolantPipe_Straight_Sink", new Vector3I[] { Vector3I.Forward, Vector3I.Backward } },
+            { "Gauge_SG_CoolantPipe_Straight_SingleSink", new Vector3I[] { Vector3I.Forward, Vector3I.Backward } },
             { "Gauge_SG_CoolantPipe_Corner", new Vector3I[] { Vector3I.Forward, Vector3I.Left } },
             { "Gauge_SG_CoolantPipe_Corner_DoubleSink", new Vector3I[] { Vector3I.Forward, Vector3I.Left } },
             { "Gauge_SG_CoolantPipe_Corner_SingleSink", new Vector3I[] { Vector3I.Forward, Vector3I.Left } },
-            { "Gauge_SG_CoolantPump", new Vector3I[] { Vector3I.Forward, Vector3I.Backward }  },
+            { "Gauge_SG_CoolantPump", new Vector3I[] { Vector3I.Forward, Vector3I.Backward } },
         };
 
 
@@ -145,7 +145,7 @@ private bool CoolantCrawl(Vector3I last, IMySlimBlock b, ref List<ThermalCell> l
 
                 Vector3I next = b.Min + dir;
 
-                //MyLog.Default.Info($"{b.BlockDefinition.Id.SubtypeId.ToString()} | last: {last} --- next: {next} --- min: {b.Min + dir} --- max: {b.Max + dir}");
+                MyLog.Default.Info($"{b.BlockDefinition.Id.SubtypeId} [{next == last}] ({loop.Count}) | last: {last} --- next: {next} --- min: {b.Min + dir} --- max: {b.Max + dir}");
 
                 if (next == last) continue;