Can anyone explain why some of these machines will coast when left on a hill, while others wont? My buddy has an LX485 with 2500 hrs. He can get off it on a hill and it stays put. He borrowed my LS160, 1400 hrs. He pulled up on the same hill, jumped out, and the machine started coasting down the hill. I always assumed it was wear in the hydraulics that allows the machines to coast, but both of these machines are low hours, well maintained machines. Anybody have any input? My old L785 wont coast in low speed, but will take off in high...