Bob Gardner wrote:

I can't say that I have tried every prop and engine combination, but I have
never been able to stop a prop without pulling the nose up to an alarming
attitude...you can pretty much count on it windmilling.

One of the aviation writers (Schiff, IIRC) did some experiments along those lines. He
came to the conclusion that stopping the prop was only productive in terms of
improving glide distance if you were more than 6,000' AGL at the time the rubber band
broke. You have to get very close to stall speed to get it stopped. He was working
with fixed pitch propellors, however.

George Patterson
This marriage is off to a shaky start. The groom just asked the band to
play "Your cheatin' heart", and the bride just requested "Don't come home
a'drinkin' with lovin' on your mind".