I have been watching these threads with interest, buying a new sled any day now and still don't know which - probably the pro. My last sled was 09 summit 154 but I got to spend a day on an 11 etc 154 x last season and not even a comparison. The skidoo 800 has always been strong, the etec motor is smoother and just as strong and no real issues I know of. The narrower stance changes the handeling in a big way - carved great with just small body/feet movements, probably a lot like the pros but have not been on one of them yet. The non ported track really stays on top of the snow and pops out of a hole so much better than my chainsaw 09. Apparently the pro also stays on top great (maybe better?). I think skidoo makes a strong reliable sled that now carves and sidehills much better than before. If Polaris was still selling dragons I wouldn't even be looking their way. I'm no engine expert but I know 2 guys that put in three motors in their 800 dragons over a single season - were always in the shop - however I don't know anyone who has had issues with their rmk pros so they had to have addressed the issue. I don't think you will go wrong with either sled. Guys I talk to with 11 etec 800s say they're awsome, guys I talk to with 11 rmk pros act like they wouldn't even want to go sleding without it. Locally the skidoo shop (Mr. R's in Lethbridge AB) is awsome, great customer service and they actually sled. I have heard good things about the polaris guys as well. For me it comes down to two factors. I want to try out the pro and see what all the fuss is about and the spring order rmk comes with 4 years bumper to bumper warranty (I am told, need to read the fine print still). Have not pulled the trigger yet but I'm 80% rmk at the moment and going to the polaris shop tonight so could be 100% rmk by tomorrow.