I have one and have been extremely happy with it. I moved the ski stance to its narrowest position. I have an 09 TM8 153" also. I really can not tell any difference in the few inch wider stance the HCR has. Sidehilling is a breeze. I have ridden the sleds back to back and the difference is nil, IMO. The track is a little stiffer, no doubt. What is interesting in regards to the track was how well it actually worked. Yes the 80 Duro track is a little better on those DEEP days, but there were a number of days the 90 Duro track worked better than the 80 Duro track. Those days when the snow was a little heavier and chewed up. Again My 02.
I would not hesitate getting another HCR. Again, My 02.
Sam