I for one hate the notion of zero IPC territories altogether. Regardless of where they are on the map.
I would be in favor of doubling the value of all territories, making 0 IPC tts worth 1
Right now most nations income is much inferior to their production capabilities, ICs are sometimes a rare purchase
Doubling the IPC values of all territories would swap this, nations would have insufficient factories to start the game, and would likely purchase additional ICs and/or upgrade the ones they star with
You would obviously have much more units on the board, but this I believe would lead to less board space being ignored for large portions of the game
Battles would also average out better with regards to dice rolling
Just giving a possible solution and arguments for it :)
It may be a terrible one, but it’s more feasible for F2F games with marking all over the map