I ordered a Lee Auto-Prime from Midway, and it came with two trays, one for small primers and one for large primers. The small primer tray was mounted on the Auto-prime, and has a primer pin in it. The large primer tray was loose in the box, and had no other parts (no primer pin) with it. Do you use the same primer pin for both large and small primers, or should there be two pins? The primer pin I have fits both trays, but is not snug coming through the hole in the top of the large primer tray. Thanks for any help.