Kevin,

You are right, I love my YS stuff now, but I also realize that for the older more slippery fuses the 1.40RX is hard to beat. It is a bullet proof engine and must less expensive to run. Also, you aren't going to be flying Masters or FAI with it anytime soon. I personally ran the 17X12 with an ES pipe on 15% Cool Power. Very simple setup. Others have played with bigger props and different setups, but I think the 17X12 was easy on the engine and ran fine on 15% Nitro. You are in a position that you just need to fly and that setup will do just that.

Arch