I also have choosen the APC 11 X 5 prop for my OS Max 46 on my Kyosho Cap232. Before choosing that prop, I tried about 5 or 6 other props. But when I put the APC 11 X 5 on the plane the performance jump was very obvious. The vertical performance was enhanced immediately which is what I expected, but the top speed seemed unchanged from the 6 inch pitch props I had tried. And braking on the down line was great as well as wonderful speed control on landing. I absolutely love that prop. It transformed the plane from lame to great.