Originally Posted by
EasternATC
It's not the same thing, Rick. The thread is about grabbing each blade near the root and pulling/pushing the airplane forward and back. This does not spin the propeller.
If the engine is at the right point (ie right at the top of the compression stroke on any of the cylinders) it would only take the tiniest movement to push it over the top. These engines are like firearms...don't ever point them at anything you don't intend to shoot, ie don't stick anything in the prop disc that you can't live without.