I havent ridden a new cat(12 model), but I will say this ..the pro rmk's in 2011 have been great sleds, I would bet that there is near 100% owner satisfaction with these sleds..yes, some have lost crank bearings(possible kinked oil supply line(per bulletin), some just bad bearings,(same cranks as the cfi -8 dragon motors and it was rare you heard of them loosing a bottomend)), a few have had bog issues(a few bad injectors, a few bad plug caps, a few sticking powervalves, and many hitting the rev limiters due to light clutching), a few have lost sensors(temp, tps and such, and a few have gotten a-arms at the start of the season(notice no complaints once season got going and good snow coverage?), and the weak tunnel issue(same basic tunnel as the dragons and few had issues on them, most issues are from bottoming the suspension hard with weight on the tunnel(2.5 of gas and a bag), tunnel is a pretty easy issue to reinforce if it worries you,( we are because we pull tow sleds of food and fuel), now...if you consider the amount of sleds polaris sold..they are having a great track record....
Now for the new cats, here is my take(I almost ordered one as well ), nice looking sleds, but, same motor(which is a great motor), same track(again, great track), same weight(within a few pounds),and same basic skid(pretty good skid), the 11 pro against the 11 M in deep,steep snow did better, the deeper it was the better they did...now from what I see, the 12 cat should perform about the same in deep snow about the same as a 11 cat(all those items that really affect that are the same) the new chassis should help a bit, as should the chaincase..but I am not sure it will be enough..now I know all the diehard cat guys are gonna scream bloody murder...but thats my opinion from what I can see/read from looking...otherwise its a great looking sled and it may out perform what I am thinking its going too..I hope it does...cause we all benifit..but we will have to wait and see....hope this helps ya some....