My Cassutt is probably close to a KR. I have a friend with a Lancair 235 sporting an 0-290. He and I are both over 200lbs resulting in a rearward cg.. When I first flew the aircraft it took a concerted effort to to not cause pilot induced oscillations.
To fly it required "caging" the stick until flying for a few minutes. I would not own an aircraft that sensitive in pitch. I extended my KR2SS 28 inches (two extra bays) to insure a stable cross country airplane. Bob Johnson Oregon, USA badbob0...@embarqmail.com