Dora/D9 is as lot of fun.  I can't say I'm a huge fan of the rattling guns...all the books I've read mention what a good gun platform such-and-such airplane is...can't say I recall reading about airplanes jarring about as the guns were fired.
One think I noticed, like you guys, was the quick E bleedoff on the D9.  If you get under 250, she likes to snap onto her back if you are twisting about.  Nice guns, good amount of ammo and *real* nice to fly high and dive with.  I wasn't seeing myself turn into a lawndart at 450mph...nice to be able to PULL UP   

I spent most of my night in Ju88s...trying to earn more perk points for the Blitz   

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Paul J. BusiereAces High Arena handle:  BD5Pilot 
http://bd5.checksix.net BD-5 "T" (TurboProp) 90% complete, first flight in 2001 (We hope!)