K those are the cupseals I have. Did you modify the cupseals at all? What about the valve inlet tube? Can you show pics of what you did to the bolt?
I don't know if I will take it as far as you, but I can definitely lighten up the striker a bit and would like to keep a good velocity so may want to retain the bolts velocity adjustment unless I can get good velocity with springs only. I would like 30+ consistent shots above 260 on a 12 gram.