I don't get it. Every Lee mould I've ever had opened and shut just fine and cast round bullets, including my copy of this one which I just got a couple of months ago from Midway (also inspected by Shirley, just checked the sticker that I had pulled off the mould and stuck on the box lid). The new pin system is the berries, better than ever. Even the misused and abused freebie that Erik Ohlen threw in on a deal years ago lines up perfectly with some care and guidance that the first owner didn't give it at all.
Some pictures of the mould?