Well, I switched to a 12x6 Master Airscrew K6 series and the engine seems to like that a lot better. I had to open the high speed needle about 3 clicks and the idle about 2 clicks and it runs great.

I'm really enjoying all the extra power and fuel economy. And my plane stays so much cleaner now. Also, it starts up so easily, and no more glow plugs to burn out.

Highly recommended.

Bob

I think it was a great investment.