I've been picking casually for a few years. Recently I've gotten much more into it. I've always used a shallow half diamond and have been able to pick locks as tough as a Brinks deadbolt with two spool pins (though I am having difficulty lately). Anyway, I picked up a Southard PXS-14 and have not been able to pick this lock with any pick or pressure. I cannot get more than the last (4th?) pin to set. Any advice?
I also notice that the shallow half diamond in the kit is not as tall as the one I've been using for years... Is it perhaps too shallow?