Also... they SAY that these things have a tendency to FLY!
I, of course... have yet to test mine but I can tell you from experience that when testing a strange bird, you never know what is going to happen.
I was flying an Aeronca Chief for the first time off a short field and had every intention of flying. After pointing it down the centerline, applying full power and checking the (few) gauges it has, I looked up and I was FLYING!
Some people have done just this in RV's so I hear due to the power and wing.
Have fun testing!

CJ