Thanks. I'm getting similar output on my 4 year old 33. The 20.5 x 10 may not be the most load still. I hear a little prop noise. I wish there was an 11 pitch. Just don't want to bend it myself.
I know you have a GT33 project in the works. The throttle curve is pretty strange compared to the glow stuff but throttle can be tamed with some work and thought.
I have a 21X 10.5 coming, so will be interesting to see how that goes.
From what I hear, if the pitch is changed on a APC, it will gradually go back to the original pitch?
The 20.5 x 10 is a 175 prop, whereas the 21 x 10.5 is designed for the 185.