I'm wondering if Jim Davis has his aeroplanes mixed up, the Aztec with the door open would oscillate in pitch with quite a bit of buffet. The 'E' model was the worst. At least it shut up the right-hand seat pax, they would go very quiet and sit up like a peg on a clothes line.
Bonanza CFH is indeed no longer with us but the ATSB report has been 'removed'. Why would they do that?