Ah,
But the coast was not yet taken from me J3 or J4 ;-). It never completely was. If you do the math, it looks like this:
26 + 10NO’s (outer perimeter + Hawai) + 1 (Hawai) + 20 (DEI) + 2 (Phil) + 8 (China) + 9 (SE Asia) + 4 (some Russian territories) = 80 max!
Later on I lost a LOT of ground in Russia + Asia, so from turn 5 the income went down quickly… I made a start invading Australian territories and contested some SE Asian territories back and forth and my guess is that by that time the Japanese income was indeed more between 55 - 65 IPCs a turn.
Compared to the 80 - 95 IPCs Japan can collect when going all in against Asia, Russia and Middle East this is peanuts, but the latter strategy puts the Axis in a time/tempo disadvantage (IMHO ;-)).
BTW, I have to correct myself. Repeating J1 & J2 in my head today I came to the conclusion I got some numbers wrong in my lazy guesswork some days ago ;-). I’ll correct them in my previous posts.