cde0214,
Years ago I witnessed a person`s hand come appart as one of those black props took one his fingers off and sent it flying some 30 feet away. Thats another reason to use wood props. I see that plastic or fiber props can sustain hits without breaking and thats OK as long as they dont hit flesh. When somebody advises about those more dangerous props being more efficient, which is true, just remind them the extra danger that comes with them. Sorry man, but that happened to a friend of mine many years ago, and I have becomed an advocate of advising about this to anybody I see using them. BE CAREFULL !!!