ORIGINAL: Tired Old Man

However, some of the better props are made from carbon fiber, which should also be classified as a plastic propeller since it's laminated with specialized epoxies.

Hard plastic props do transfer more of a shock/impact load to the airframe during a propeller strike. One has to decide if they can land with the precision required to avoid prop strikes. If a person is unsure of that ability they should use wood propellers that transfer less of a shock load to an airframe during a prop strike.

Hub drilling raises other factors when plastic propellers are used. One must be absolutely certain that any plastic prop that will be drilled for a multi bolt installation has propeller hub integrity sufficient to handle the additional outer mounting holes. Some brands of plastic propellers will not safely tolerate this modification and have been noted to shed propeller blades after drilling new mounting holes. Always consult with the manufacturer when in doubt.