I have 3W 32x10 prop. I've run it on my DA150 and boy did the engine not like that prop, it never seemed to unload or even get close to its power band rpm. I have the engine on a TOC 40% Yak on cans. I am running a Bolly carbon 31.5x11 QQ and the engine spins the snot out of this prop, and yes, it is a LITTLE loud he he, but it pulls well on uplines. I cut 1/2" of each tip, reshaped and balanced the prop, and the DA150 is still not happy with this prop.
DKjens