Doug, youre absolutely right- so far as Im aware, the CNC manufacturing process used on the Acmes and OJ XMP's is not the reason for the large blade surface area. Nonetheless, both CNC props do have a lot more blade surface area as compared to their conventional hand finished counterparts. Youre right that the Acme has more surface area, but the XMP isnt that far behind.
This is a new-ish hand finished OJ for comparison. As you can see, the XMP vs. Legend props are very different in shape, with the hand finished prop having quite a bit less surface area.
Last edited by TRBenj; 04-26-2012 at 02:46 PM.