When **** hits the fan, even without skydiving experience many pilots managed to bail out of, aerobatic a/c with quick jettison canopies. All but one i am aware of saved their lives, one of them unfortunately hit the tail. I would never fly an aerobatic machine without parachutes. Bailing out is far better than land a tailwheel on rough ground, high approaching speeds around 80 kts, and the almost certainty of tipping over is very riski business, when tipping over the neck is likely to be exposed and then fire cannot be ruled out....In the likelyhood of a possible major malfunction in the air, be prepared to sacrifice the aircraft to save your life, and please do practice regularly idle engine emergency landings over airfield...