Now to shoehorn everything in to see how it fits! DA also said not to cut the stinger pipe if possible, but if I HAD to cut it that hacking off an inch wouldn't make that much difference. I can't wait to hear this baby running and compare it to the Slimline Pitts that i so fondly remember. The MTW-75 canister is a high volume muffler so it should be fairly quiet without robbing any power from the engine. I'll report RPM numbers after I get a few tanks through the newly rebuilt DA-50R.