Steve

Its not all about RP and Spooling.

With YS 63 you can do valid static thrust tests, as the other guy did earlier in the thread, but there is no substitute for flying.

I have found Wood props to be less effective thrust generators than composite ones. That said there are some apalling compsite props out there - in my view dynathrust and master airscrew are amongst these.

I believe that you should ensure an APC 13x4W is on your list of props to try.

Good Luck