RE: Running without muffler
yeah, I run the weedeater pickups with the felt insert or ceramic depending on what I have on hand at the time, it helps get the most of the tank of fuel and are heavier than a normal clunk. If you can't find them at a mower shop Home Depot has a package with some fuel line and a clunk for about $10
So, how does the Homelite pull the stick around? I was flying mine with my McCulloch 32cc today and I love that plane, a little too gusty to screw around too much today though.