@Tonka Crash, thanks for testing this! I didn't have that big testing facility as you do, so it's all very useful. Below some comments and notes: I was able to reproduce the two-RTS setup bug. Created a tracking issue, so will try to track it down. Most mods that offer resources transfer do not respect any cross-feed settings. I could easily do the same in KAS, but my intention was to obey the game rules. "Obey Crossfeed" setting in the game requires that the part must explic