I have a Rev with a 144" am M1000 with a 153" and the Turbo Dragon with a 163" the 163 will do anything the 144 will do just faster and it gets stuck less/ floats better in the powder (thank you Holz) but the truth is a 144" sled will do just about anything just as well if you can ride it, 99% of it is being able to ride. Now that being said long tracks and turbos are the way, they make up for lack of skills. Now maybe if I build a twin turbo 174 with custom 4" lugs and NOS.................