I have a little different opinion on the m8 trail performance. I have to say that I have never ridden a Poo or Doo on the trails - it sounds like they have a nice ride. My background is mostly mountain riding, but I've also done sno cross and cross country. I feel that I have good experience as to what a well set up sled rides like on the rough trails. I agree that a cat is harsh on chop, etc if traveling a slow to moderate speed, but I have always been amazed at how well the M-sleds handle the rough stuff when attacking it. These sleds have actually made me look foreward to the ride in and out because I know I am going to enjoy how the sled performs when pushed. The Doo and Poo may be that good too - I don't know. The M-sleds also give me a lot of confidence when attacking the bottom of a whooped out approach to a big climb. I feel that the chassis works better the harder it is pushed.