I have progressed to an FIC IC on turn 1 in all my games now. It does not take much to overwhelm India any way, so even at 2 units a turn FIC is adequate. Also once transports are servicing Japan one can drop down to seazone 36 to supplement these troops.
I laid out my reasoning for Kiangsu in the above post, sezone 61 is out of reach of US bombers or fighters without Long Range. This can be used to build transports if I need them for Japan. They can also keep cycling from Japan to seazone 61 an unload every turn if need while my Navy takes care of other business.
In most normal games my second IC is in Manchuria because I am maxing out Japan and FIC. My third is usually Burma or India, although I may go for Kiangsu for ships or additional central front troops. I think an IC in Manchuria early is just a waste. Japan is right there and can produce 8 units. Manchuria also serves the same seazone as Japan so there is not tactical advantage there either. All an early Manchurian IC allows for is more troops where Japan should already have its most troops at any way. As far as baiting the Russian’s into something foolish, it looses a turn of production and defending it slows up my attacks against China.