Does anyone here have the Trac-Vac 655-PRO. Thinking about one for my Super-Z I'm concerned with build quality and how it will flex to follow ground contours. MSRP is $2000 I don't like Hustler's Bac-Vac unit, as it prevents me from dumping into my pickup bed. I like how the Trac-Vac unit puts most of it's weight on the trailing attachment and not the ZTR itself. Any thoughts, suggestions, etc?