The hoop didn't come with any instructions. I wondered if that hole in the top of the hoop was meant to be bolted to the floor. I didn't utilize it when I installed the one on the Barracuda. The thought of bolting through the floor had occurred to me but I'm not sure if the hoop won't need to be located lower. Until I get a driveshaft in it'll be something I'll hold off on. It does seem to be a good solution.
The driveshaft is one of those things we've got to start thinking about soon. I know that my son was concerned about strength and had been checking into aluminum, carbon fiber, and other materials. I'm not sure what diameter we'll have yet or what yokes we need.