I'm going to try a Xoar 18x12 wood prop (non E-version) on my 2000W electric. Currently using 18x12e APC. Supposedly (from a guy who works with APC to develop props), glow props are more efficient at high RPM on bigger motors. If you're using a larger prop at 7000+rpm, the electric APCs start to flex and lose efficiency. 18x12 APC (non E) is quite a bit heavier, so Xoar seems like a good option. Also nice to find them stocked locally (Xoar).

Not sure if it will happen this year though, season is getting short and I have to concentrate on my foamy to make the compulsive purchase worth while