I'm looking for some feedback on the newer 570 engines. I am looking to purchase a new sled that will be used mostly for ice fishing and a little bit of trail riding. At this time I am considering either the Bearcat 570 or the T570, which are basically the same sled. I'm wondering how the power will compare with my old 550 liquid and also how reliable these engines are. I wish that they offered a 550 or 600 liquid since the Z1 is a little overkill for my needs. Thanks.