I've got a nice x-valve mag and I want to get it tuned up to use in a big paintball game this weekend, but I'm more of a cocker guy and don't know how to work on mags. Is there anyone around Cincinnati that can help tune it, replace orings/shims and get it working better? I've got a scuba tank for testing and all the tools, just need some knowledge and maybe a few replacement parts.

Thanks!