Drozd Forum
If you like 600 with a burst limiter, 1000+ at full auto is just more of a good thing. There's no legitimate need to rip off a magazine in under two seconds but by God it certainly feels good.
Some of the guys on the Drozd forum have been using, abusing, and hotrodding these airguns from the beginning. There are also a few Russian posters who've been involved with them even longer. If you'd like, I'd be more than happy to send you some of the, ahem, literature that I've received from these fine folks - just send me an email or PM me. Be sure to ask any questions there, though, as they are a wealth of knowledge about all things Drozd. I'm Satori over there, as well.
I have a habit of letting the mag warm up after each powerlet is expended and I have fairly good fire discipline (I typically fire off 2-3 round bursts until I'm on target, then 5-10 round bursts for effect) so I don't freeze up too badly. My plan is to buy two more magazines so that I can rotate them. Having three mags to keep the cooling to a minimum would be helpful now; in a few weeks, when daytime temps are down in the fifties, it will be vital.
For the record, I'm sticking with the red dot. I've got it sighted in about as well as one can sight in a Drozd

and by the second or third load of BB's I can follow their trajectory visually through the sight, making corrections very easy.