True...but I have a Sehkmet gauge reading PSI on my regulator/plenum...vs the dial gauge reading out in Bar...so when I was seeing the plenum "instantly" drop 50-60 psi ->4 bar, then take several seconds to get back to the starting pressure...I am not sure that would even "register" on the 0-250 bar dial gauge... What do you see your Reg gauge do when you take a shot?Bloomin shotgun pattern. Consistently off is one thing, but...how wide of a target is that? 2 1/2inch groups @ 100 ain't baaaad, that's a dead starling 6 out of 11 shots? Looks like my brother's 350 magnum .177 groups @ 40/50y. But I have never shot out to 100 yet myself. I say when those new Mrds are back in stock get a tin of each and retest, and of course... post results! Does your ghost refill the plenum pretty quick after each shot? I recall Tec had his reg cranked up and had to wait a few extra seconds for it to refill between shots.
tc