I have the ProMotion arriving today, I have the 3" track on my 13 Pro, so I can't wait to try it out to see how it holds a line. I found it a little harder to pull the 3" over in comparison to stock when I switched between sleds that were the same except for the track. For me it is all about tweaking the little things to make my ride just a little bit easier. I went with the 36" front end and the ProMotion to see if it helps, 5-10 rides if I can't find the extra energy to make my ride last longer, then it won't we worth it for me and I will take it off and put it in the swap meet