Looking at getting an m8 but having tough time finding carryovers in the 153's. Alot of 162's around though. Sled will be ridden here in N.D. just as much or more as it will be in the Mountains, so I am wondering if I should go with the 162 or 153? Is there a noticable difference between the two? I will be going from a Firecat so it will be a noticeable difference for me anyways.