Also interested as well. I have a hammer P and was thinking about selling it because of the weak frame, but may as well make it a killer stock class set up. I've lightened the hammer some and have a maddmann autococker spring kit in it now. I have 12" lapco barrel set and also a freak kit. What should I do next to get more out of a 12 gram? Run the freak or 12" of .684 choke on the ball? Where or how do you guys get your cupseals like that?