I knew a gunsmith once that used to be able to make half cock notches on standard Ruger SA hammers (Wes Flowers) but he has made his exodus. Seems like it wouldn't be that hard to do, just weld a small bead on the front of the hammer and cut a "notch". Anybody know of anyone that can do this? I also have a SBH hammer that needs repair - somebody filed it down too far and it needs to be welded back up then filed to the original factory specs Anybody know of anyone that can do these repairs/mods?