Can i ask you to have a look at ....

Ah, very good points. The Musashi trick shouldn't last long (stops as soon as they're hit once), but certainly the 1+ rounds of stop and go would screw up my guns. Maybe it's worth special casing that and clearing gun data once you detect the switch.

And the relative fast-learning of their guns in early rounds isn't something I'd thought about much. Maybe there's a place for some light flattening early on as soon as you know they're using something besides simple targeting.

I've just been thinking a lot about all these bots that take 1-2 rounds off of Diamond (and DrussGT). If you're winning 95% of rounds vs a given bot, maybe you’re just a little consistency away from 99%. And it could be from simple stuff, like starting a round cornered or too close. But it might take some real research to figure out some causes (or just give up and accept "randomness" =)).