Hey guys - one of the things that recently popped in session with my players was treasury is handled at the domain level - which works for speed of play, but affects how many gold bars can be stolen from weaker areas that in a real world type of situation would normally be funneled via wagon or courier of some sort to larger and larger locations until ending up at the central administration of the province then sent to the capital of the country or domain's official treasury.

It also creates issues with sending funds back to raise armies, build things etc that would require timing.

One of the constant issues in here is the whole 1 army, occupying 1 province with multiple domains having strongholds, then the province fortifications thing. (always solved as province fortifications represents a castle that's value acts as a bonus to other strongholds in contesting/reducing their levels so long as the province ruler favored the domain's stronghold in question) - it was a spin off the pdf on the forum for conquests from years ago.

I'm not really enthralled with the idea, but two of the more logistics minded in the group are chomping at the bit for it & the others seem to like the idea from adventure or strategic viewpoints for creating options in game play.

I might see this going into another game or online game I'd code up - as I never gave up the idea - so issues of too much paper & pen time / dm over load wouldn't be as big of a deal.