has anyone gone from the 800 rev to the 440 what were the good points and bad. hows the ride of the 440 vs 800 . my current sled is a 2003 800x should i consider the 440 not much of a lake runner just like the twisty trails. also what about gas mileage hows the 440 . if i get a 440 what year 2003 or 2004.