Netters; This discussion reminds me of when I was a "nugget", flying T-28s out of Whiting Field, Florida in 1978. Those of us that had survived Fam 1-15 were sent out to solo the mighty Trojan in order to practice our new-found piloting skills. Someone in the group was talking about doing negative G pushovers and watching a pencil float in mid-air. One of our buddies went out to try it the next day when he encountered a control problem. It seems he hadn't secured the parachute in the rear cockpit, as emphasized in the NATOPS Manual. He declared an emergency and landed at an outlying field. After this guy landed, the duty officer climbed up on the wing and saw that the unsecured parachute was leaning on the stick in the rear cockpit. "You're in a heap of trouble, enswine!" He growled. Back at Whiting, he found himself doing a carpet dance in front of the squadron safety officer. He got washed out of advanced training about 6 months later. So let this be a lesson to all KR drivers. Unplanned manuevers can lead to a bad ending.