I'm looking to purchase one of these. I'd like to hear from any users of either. I know minimax prefers his razor, anyone else have a razor. I've heard only 6 of these units have been sold so far. There must be some rockhound users on here. Do they perform as advertized? Durable? I need to mow up to about three inches. Poison Oak, Coyote brush, Doug fir, etc. Not much grass or cultivated stuff, just brush and small trees. All input appreciated, thanks. I'll be using a tl140 or 150.