I am a cat guy right now for one reason, the engine, near bullet proof and the best power, but I am not brand loyal so take this comment for what it is, engine aside.
I think the dragon feels better than it is, I pulled up to a hill and jumped on a slp piped D8 and thought, man this thing feels nice and was really enjoying it, then got on my m1000 and went far more places through the trees and probably twice as high, (as it should with more hp). When I followed my previous tracks I made with the dragon on the m1000 it was just as easy or easier. (I did revalve the suspension on the m1000 and it made a huge difference). The only turbo sled I beat on my m1000 was a TD8. Its deceiving in my opinion.
But a m-series on boost is a hand full, I couldn't make mine hardly do anything I wanted until I put a KMOD under it, I can't even begin to explain the difference it made, it still rode like a cat, but if you where to ride a PRO to its limits: steep sidehills through the trees they are overly impressive, with the TM8 with a kmod I felt just as comfortable as being on a pro (but with more power)
The Pro is far Superior to any other stock sled last year, as far as low end bog factors -- what kit where you running, clutching plays a huge role. I would feel pretty confident about most of the T kits this year. (personally I trust every thing but the poo engine) Everything I have seen over the last year that was new with a newer T-kit had great bottom end.