Breaking up the US East coast, splitting SEUS (6) off from NEUS (was 12, now 10):

…and refining the West: NWUS to 4 IPC (was 2):

These changes net the US +6 IPCs, intended for a stronger US without NOs, or for a system that cuts the US income in half for a while e.g. 1940 and earlier starts.
Experimenting with new Med SZs:

And finally, some Soviet tweaks to add a few IPC and granularity:
Split Siberia (1) off from SFE

Split Irkutsk (1) off from Yakut

Net change of +2 for Soviets who have not gotten much from my other tweaks and have fallen somewhat behind in the IPC counts.