Floatwheel GTV Kit Riders...I have Questions

1)Anyone have any nose dives with your GTV Kit? Wondering if installing one increasing my chances of nosediving if I get one

2) I really want to know if its reasonable to assume that I could go 21-22 MPH consistently with the GTV Kit. I weigh 207 lbs.

3)Anyone have any motor overheating issues since using the GTV kit? Worried about damaging my magnets in my motor.

4) Willing to tinker with programing, but I curious to know how easy it is to set pushback levels within the software app, and whether I can switch between doing the normal push back on stock GT firmware from FM and an increased pushback to 22mph out on a ride.

5) Can I pay cash for the Kit, or do I have to use another currency?

Thoughts?