in my personal opinion the biggest hindrance to the sport of snowmobiling in the united states is the registration system. every state requires a sled to be registered in there state to ride in it. and some states have trail passes to cover maintenance and some don't. its pretty much impossible to ride threw several states on a trip without registering in all of them (its not cheep) with more than 2 or 3 sleds that could be thousands. these rules are ridiculous. do you think drivers would except it if those were the rules for cars.? no it would be an outrage! snowmobiling would take leaps and bounds if these rules were abolished and a country wide trail registration and trail pass system was implemented. (one registration and trail maintenance fee to ride all states) imagine how it would expand trip possibility's and no more tickets for accidently crossing a state line. some may not use this new freedom but having the possibility would make things allot more fun for those who would. all of these states should make the rules uniform as well. I think this would be the best thing that could happen to the sport of snowmobiling. not to say there wont be issues to resolve but it would still be a giant step forwards.