I am buying a new sled and i was pretty sold on an 06 m7, they are efi and 140hp stock, but the rider postion seems abit old school. Then i rode a friends 07 600 rmk and it was alot of fun.... Then i found a 07 700 rmk dragon for a good price and slp pipe and can...what kinda hp will this sled have? is it reliable, does it handle well for flat land and trail?