braol I got my GC .316 4 hole, looks like you got lucky . As far as pins go I checked them all in my three mould outfit . I have found that all fit all , except the deep/long HP pins . The bottom collar is a little big but I can/will spin then on my drill press and dress the until the blocks close . I say to Miha well done , do NOT send me any replacments . I am happy , and for you to save the time and expense into paying on that good machinery . I want you to continue to make customs for us .