By the time you have adjusted this or tighened that, tried this or that, you could have just sent it to Martin.
I always tinker around on my RAW, but i am not that good at it..I will break a piece off, or completely mess something up. In these times(much to frequent) I will call Martin and tell him i messed up again. I just did that last week on a regulator. Called him up and told him what i did. We had a laugh about it, and he told me to send him the regulator and he'll fix it.
He's such a nice man to talk to..when he's got the time.
I can understand trying to figure it out...most of us like to tinker. But where you are trying...Martin Knows.
I do understand that this is not from Martin, but from Utah Airguns, but i would still call Martin to get it looked at and tuned.
You say last resort..i say first choice
give him a call Martin Rutterford - 931-638-0241