I kind of regret trading my KP for the CIP v2 Sniper I'm using now. Was using a Freak kit for the barrel and I can verify how much better the marker is with matched paint.
I'm surprised that other people just put up with the farting noise when it's such an easy fix. Grab a Bic pen, chop off about 1/4" and put it behind the spring on the plunger. I'll grab my daughter's marker and post some pics later today if you want.
Also, don't waste your money on the TechT bolt. It looks cooler but in practice, I really didn't notice any difference using it.