I get a sad feeling everytime I see one. I wish I had never sold mine. It was so much fun to run around on. Mine sounded surprisingly awesome as well.
The 305 forum is good, but you have to dig a little. Loud mouse is the man. He can come off (well, be) a bit of a hard ass, but all of my dealings with him were very positive, including a couple of long phone conversations. I messed around with the carb on mine for months before sending it to him. Came back looking and functioning like new. All for $75, iirc.