Hi Mike,
Yes I have flown it around 10 times on my Kyosho P-40 and that size has average power for flying it scale like. Besides it is nose heavy as it is with the FA-56 and I had to put a 25gm weight at the back. Unfortunately I don't have a weighting scale to check how heavy it came out. Maybe I can borrow my friend's bathroom scale and see how it come out with. Oh I am using a 11 x 8 prop and I believe it will be more happy with a 12 x 6.

Danny