Is there any hard and fast rule on when to kick down the supercharger to Stage 2? I had been given a rule of thumb to hit the switch between 3800 and 4000 ft; so far it seems to be working for me well enough.
Also, is it pretty common practice to run the engine at near-maxed the bulk of the time? That's pretty much what I'm having to do to keep up my speed for all the turning contests I seem to find myself getting into. At 98% and radiators on 4 at least I'm not burning my engine out any longer!
I've also learned that Zeros are flying bullet magnets- as you noted, they indeed can't take much of a hit and everybody is itching to be the last one to put a hole in me! I'm proving to be VERY good at being the bait for drag-n-bag party trains

Every time I go up I imagine all the pilots on the other side grinning at the prospect of a relatively easy kill- that's what makes me want to get better
(Of course, what else SHOULD I expect when faced with a sky full of Spits, La-7's and Fw190's? It's been ages since I've flown an accurate historic mission! Time for a few hours with Mission Mate, I suppose...)