I am thinking about looking at a 500 Snopro but it only comes with the 128" track. I was hoping to get something with atleast a 136" for off trail but I'm not sure how well it would float. Have they moved the front wheels forward so there's more track on the ground or would i be better off getting the 141" I really don't like the look of the Crossfire. but I would consider it if I have to. I'm riding a 136" now on an older sled and it seems to be just enough for the riding I do a 121" wouldn't be much good in 4' of powder off trail but I could be wrong. Any thoughts would be great.