I did my demo of the Gravely ProStance today, and psoted a review if you care to look at it at all. I may have been able to get a demo on the ProRide, but since I have a fairly new Z, and am only interested in the stander right now, that was all I asked for. I did ask the saleman who brought it out to me what all machines of Gravley's they carried in stock, and he ran down the list and it coverad a lot of them, but IIRC the ProRide was not one of them.
I'm not very computer savvy. User CP, PM, what the heck are you talking about?!? Guess I'll have to google them.