Does any one have or have used a Vermeer track driven SC 505 or the newer SC 60TX It looks like a well put together machine, and will fit through a 36" gate. I also like the gear driven system, right off the engine power, right to the cutter wheel. I am also currious as to how much damage it will do when turning sharp on lawns. I am looking for opinions of those people who have personally used the machine or owned one of them.