@Audacity:
I’m not privy to WotC politics but I’m sure the game designers are doing their best to keep the game on the rails. Solutions will be easier to find when the suggestions for change are more positive.
This was my suggestion for fixing the Large Artillery issue instead of changing the stacking resolution rules:
“Large - This unit may not end its Move or Assualt in a hex with a vehicle unless it has the Transport ability. Vehicles may not end their Move or Assualt in a hex with this unit unless that vehicle has the Transport ability”.
If they want to allow swappimg units then I suggest they just explicitly allow it:
“Two adjacents Soldiers that are eligible to Move may effectively swap positions. This is considered to two simultaneous Moves on the part of the Soldiers, and is subject to Defensive Fire, movement rolls, etc. If either Soldier is prevented from moving (due to a Defensive Fire disruption for example) then both units are prevented from moving.”
If they want to prevent the “overstack flick” then they should just disallow it, point blank. “You may not unload into an overstacked hex.” And with the new 3-units-per-hex AND my suggestion for Large artillery, you would be far less likely to bump into this limit.
As always, these are just my opinions!