F5-----$6700
F7-----$7700
It's only 1000 more for 35 more horsepower and e.f.i.
I have always been a 500cc guy , but how can you say no for 1000 dollars ?
May-be the extra insurance cost will sway me,I better check the rates.

F7 all the way. Power and weight is awesome. You can't lose unless of course it is a peice of junk. I doubt it. Guess I'll find out http://www.snowmobileworld.com/forums/iB_html/non-cgi/emoticons/tounge.gif

If the F5 was fuel injected I would go that route but its not so I would go with the F7.

If I was going to get one this would be it because it is not fuel injected and I would not have to change my riding gear as I currently ride a Prox 600