It was over gassed with the JP SCS when suppressed especially. At that point the port had not been altered. The barrel had been shortened at that point.

Once I got the S42H2 in it, then it began to act more “normal” and be under gassed (unsuppressed) which would be consistent with shortening the swell time by cutting the barrel.

We know it needs more gas, the million dollar question is how much more. Lol