What other track options are there ? I know this may sound a bit much but,, would like to go to a 156". Can it be geared down enough to pull this length track? Looking for as much flotation as I can get with out killing the power. Thinking of buying a phazer for the wife and want it to stay on top of the snow as much as possible What is the best years to buy and what should I look at when checking one over? any thoughts would be great thanks...