I have had both the 13x5 Zinger and the 13x4 wide APC on a .61 FX powered CAP. If you want my 13x5 Zinger, you can have it. It's an ugly propeller. The 13x4W APC performs alot better.

Go to the link above, you almost HAVE to but these kind of props direct from APC. My LHS doesn't have them

-Cheech