I see refences to some of the APC props but never any reference to the 4.5x3.5 4.5x4.0 4.6x3.0 and 4.75x4

Anyone use these? The APC site indicates they are marketed for 1/2 combat / pylon racing. I see the 4.2x4 mentioned on here frequently but not these other sub 5" props.

Good? Bad? Indifferent? Tower only lists the 4.75x4 so I am guessing they are not common LHS fair.

cheers, Graham in Embrun near Ottawa Canada.