Even Pitts were shedding props at one time.
Had that happen to one of my best friends. While performing at an airshow in his S-1, the prop came off during a series of snap rolls. The CG shifted back to somewhere back of the tail and he could barely control the aircraft with full forward stick. He glanced off the roof of one hangar and crashed into an open hangar.
He replaced the S-1 with a special built single seat S-2.*
His injuries, a really bad bruise on his inner left thigh. The wreckage fitted in the back of a pickup. But, if you looked into the cockpit and no where else, there was not a bit of damage. Course you had to ignore the fact that the wings were wrapped around the fuselage.
He was latter killed in an airshow in Oklahoma City flying his new single seat SU-29.
* This S-2 was a single seat aircraft that was specially built for him at the Pitt's factory. He sat down on the floor, they took his measurements, he was vertically challenged (short) guy and then they built the S-2 around him.