Great TR, great video, and I love those shirts. SFOG is my home park, and I think I've been on the Wheelie too many times to count. It's so fun!
My first Enterprise-type ride was actually the Enterprise at the now-defunct Myrtle Beach Pavilion. It was actually my first "upside-down" ride too.
I'm not sure which company made it, because instead of sitting on a bench-style seat, you sit down in an L-shape on a soft pad. I think the lack of an actual seat added to the force of the ride.