RE: Reflection bipe!
I'd get the Bipe Yak if I flew indoors more. I like my custom Reflection too much though, and it can take a little wind too.
As for balancing it on the prop, that's not hard at all. Just nose it down and reverse the prop. However, it's impossible to control it there because there's no airflow over the control surfaces. It'll always fall out of it after a few seconds.