unfortunetly i cant answer your ? but may be able to give you some insight.It sounds to me ,you like to know and do what i do,that is know what your sled is able to beat and not be able to beat.The problem with sleds are some many diffrent variables and it can make such a huge diffrence from one sled to the next being the same modle,year, color size heck even bought the same day from the same dealer.Good exsamples are f7.People rant and rave they are so fast this so fast that and i read all these before i raced one and thought for sure i was done,well lo and behold my stock xc800 beat it in 1000 ft.But i have seen some absolute rocket f7s that after that stomped me back and forth.Same goes with the xcsp 700 aot of people complain they are a turd, but there are some box stock ones that will blow the skis off alot of 800s.Vehicals and atvs on the other hand tend to be more consistant.Take my tundra for exsample, i know what trucks to aviod when i come to a stop light either by experince or by good reliable info(hemi rams, titans, new tundras, chevy 6.0 most by exsprience).But sleds are a tough call, just gata go out there and line up its all for fun anyways and just make sure its at least in an open area.