I'm absolutely thrilled with the Airmaster propeller the build quality and ease of use is nothing but exceptional .
The take off roll is very short I think about 100 meters? and climb very impressive the cruise is around 118kts to 120kts.
The propeller I was using before was a different brand with a FlyBox controller. It gave me nothing but trouble from the time the plane was delivered new , I actually stoped flying the Bristell for 5 months as we could not stop the engine from surging but now I have the Airmaster and it's a delight to fly.
I find myself recommending the Airmaster all the time to other Aviators.