So I’ve been playing with my impact mk2 and tuning it for slugs. I keep reading as much as possible on the harmonic tuning. I have elongated my tp and pellet probe which has let me lower my reg pressure. I was wondering if a lower reg pressure with the valve open longer or higher reg with the valve shutting faster would be better for accuracy. I would think a quick burst would be better. I know the reg pressure lower may sound like more shots as it will stay on the reg longer but isn’t it allowing more air to release with the valve open longer? I know a higher reg pressure means a higher pressure but it doesn’t necessarily mean more air does it? I have numbers from my new digital gauge on bar per shot. I was going to reset with a high reg pressure and adjust the hammer spring to get the same muzzle velocity and see what the gauge has to say. Anybody have an idea or answer? All info is appreciated.