ORIGINAL: Stick Jammer
I think the point that DBCherry was trying to make is that it's best to tach the engine with any prop change to determine if the engine is running within specs. Keep in mind that any prop will unload once it is flying, so the readings you get on the ground are gonna be higher in the air. The term "screams" would surely suggest that the engine is probably over- revving.
That was my fault.. Maybe Im wrong, but I think the change in the prop pitch gave it a different sound.
Will a 10x6 give a decent speed and climb?? I guess its ignorance, but I dont know what the difference would be in the performance of a 10x6 or 11x6... I know the lower pitch = more torque/less speed.. But I dont know what performance a higher diameter would yield.