I'm looking for some documentation on the resource flow types:
Primarily the first two.
The wiki is out of date and I can't find anything anywhere else.
Is anybody able to help with the logic of each option?
NO_FLOW, no flow, ALL_VESSEL, all flow
STACK_PRIORITY_FLOW will draw resource from the furthest part which can be accessed via stack joints; or by fuel ducts; fuel duct paths take priority
STAGE_PRIORITY_SEARCH is the same, but it's blocked by stack decouplers; the result being that your lifter engines will not burn fuel from your orbiter stage