Stick Jammer - mines now "done", all but the flying...

I had the same thing with the muffler, hitting the cowl. But I'm not too awful picky, as far as the cowl goes...I cut a large hole, that cleared the cylinder, and the "high point" of the muffler you talked about, and then all the way to the pipes. It made more sense to me, than cutting three holes, and it looks OK. Don't take this wrong, but I build to be functional, and fly, and I like them pretty, but I am not as concerned personally with what the cowl looks like underneath (within reason, of course!!!). I know Bob Pastorello's (see it here) looks a little nicer than mine, but I am happy with mine. Cowl goes off and on easy, and I don't have to worry about burning anything (been there, done that, have the ashes!!!). Mine gives good airflow, too, I feel, although haven't run it yet. Plus I like to see the engine!

Come on, sunshine and warm weather!!!!!!

My balance, with the ZDZ80, two Li-ion batteries up right behind the firewall, single receiver, Hitec 5736 pull-pull, is balancing right at the 1" in front of the front of the wing tube, just like everyone elses....

Here's a pic of my cowl...