i've been flying the smaller .32 fynflys consistantly for the last two 1 1/2 years and just recently changed to wood.
I ran out of 10/4 APC and had a wood 10/5 laying around so I mounted it. even with the larger pitch I found the engine will spool up much faster. from one prop right to the next on a day of testing props it might be a little harder to tell the difference. But when you have religiously used the same prop for an extended period of time, when you make a change you hear it , feel it and see it right from the line.
When I went to the NCFFA event this summer to watch, every contender was using wood.
the only thing is with wood, a small hit meens time to change the prop. With the plastics I sometimes start out with 11's and usually don't change till I get to about the 9 inch range. when the 46fx starts to sound like a pilon racer it's time to change the prop......