hey
The hcr dosen't do real good in the trees at slow speed, due to harder durometer track, and wider stance. As long as you keep it pinned, it will go anywhere, but slow boondocking is a pain. It sidehills fantastic, and it climbs like a monster. The track will bite into the snow, the m8 stays on top. Its a very noticable difference with harder track in fluff for sure, and you just have zig zag your lines rather than going straight up. Ride them both, and you will see. Its gets through the bumps great for a 153. I love mine and wouldn't want an m8 just because I'm used to the hcr.