Good to hear success stories like those. I love my 2300, and love it even more with a Slimline pitts muffler! Last time out it had the new muffler, the other was a Bisson. To be honest, I didn't tach the engine. I set the high speed needle by ear and left the low speed alone. It was a little rich on the low end, but it barely hesitated at all. The HS was intentionally set about 700 rpm (guessing here) on the rich side. With that muffler, the engine sounds like a 50 cc gas burner. Not overly loud, but powerful sounding.

The engine was running so good I ran out of gas and had to deadstick.

Still using the vp 30 pump and 15% omega. Magnum 91/1.08 carb, and MA 16-10 prop. I'll put that engine up against any 1.20 2 stroke or the 1.50 Saito any day.