RE: contrarotating props
EXACTLY! Think of all the property damage that would cause! all the death and destruction that could be accomplished just by using a metal prop! i could go on a rampage! i could have so much fun!...
just kidding. a metal adjustable hub would be just fine. i can get blade halfs any time i want, but i need a hub to put them on. he never suggested using a metal prop. he suggested metal shop because adjustable prop hubs are hard to come by and extremely expensive.