Lol, i know this thread is as old as my grandma, but i would like to reply to this stuff anyway, as there good stuff here in the dusty archives...
Youll probably know wut the diffrerence is, if not, theres the wiki :
http://www.twilighthalls.de/bf1942/wiki ... fferential
and so on. The connection problem is to my opinion caused by a too high acceleration/speed. If you do this in debugger, youll tons of warnings/error saying a object goes to fast, and starts clipping it. If you do this with a online player, i reckon it should give trouble. The B17 itself is a laggy vehicle to imho, so that makes things even worse (take a good dive and it all starts shaking up, to me a sigh of god ol lag)