RE: SYSSA 30CC GAS MADE IN USA
I have great success with either the Falcon 18 x 6 or the Vess 18.5 x 5.5 on an extreme flight extra 78 which is on the light side. I mostly prefer the 18 x 6 since the 18.5 x 5.5 is a touch noisy for some of my colleagues! However, I'm just about to fit a Falcon CF 18 x 6.5 - will post my impressions here. The engine has just been "reconditioned" by Todd with some V2 parts within.
Beej