My brother had one. It came out very tail heavy. He ended up putting a 91 four stroke on it and it still needed 'several ounces' of additional nose weight to balance. One of our clubs best pilots flew it the first couple of times and commented how hard it was to take off and land. In the air it was a gentle flying plane. My brother flew it maybe 5 times. Stalled on takeoff and did a death spiral. Shredded the fiberglass fuselage around the wing mounts and around the firewall. Surprisingly he has bought another one. He has this 'thing' for warbirds.