I took a 3 year break from sledding and now I am thinking about getting back into the sport. I had a 2008 Ski Doo MX-Z Adrenaline 600 SDI. I am leaning towards an 800 etec renegade, or a new cat Crossover. I have a 3.5 year old son who will be riding with me some of the time. I am simply looking...