I hate using gas checks. The cost is more and the hassle is more. That being said, I hate going to the dentist too but sometimes ya gotta do what ya gotta do. Any way, I have Lyman moulds Lee moulds, RCBS moulds, LBT moulds and SAECO moulds. Why is it, that of all of my moulds, only LBT and SAECO fit GCs without having to shave lead, anneal, use a tool to open them up etc.? What a PITA! Given what one pays of a custom LBT I would demand and expect that they would be a snap fit for GCs and they are. SAECO is too and that's a production mould. If those two can do it, why or why am I having the trouble I do with RCBS, Lee and Lyman? Am I alone in this?