george wrote:

The engine quits the prop stops !

This will only happen if the engine seizes. As Hilton stated, usually you must
slow to nearly stall speed to stop the prop. One of the AOPA Pilot authors ran
some empirical experiments with this and determined that, if you're below about
6,000' AGL, you will not gain enough efficiency by stopping the prop to make up
for the distance lost by slowing down below best glide speed. As Hilton also
points out, there could be times when there are more important considerations
than glide distance.

George Patterson
The desire for safety stands against every great and noble enterprise.