I have the 2011 157 T.Rice Horsepower and I ride it all over the place with ease. I am 5'8 about 180 and it is great. I suggest getting the bigger one as it floats through powder. I don't know exactly how much 10 lbs will do for performance wise. For trees I dont know how much I would suggest it as it is bigger, but for powder and groomer bombin...it's da shiz.
Yea that's my concern- riding it through the trees. It's pretty much a give and take - 153 and I can rip through trees, 157 and I can rip through powder. I ride both 50-50. Having said that, I wonder if the 153 can get me through powder?? thanks for the info!