I have a Model 90200 HAND PRIMING TOOL that I bought used. And a bit of a mystery. It came with two primer trays, but they both look the same size. Works well for large primers. Not so good for small primers. Was it packaged from the factory with a second tray especially for smaller size primers or with one ( universal) tray to be used for both sizes? I see an upgrade available on the RCBS site, to replace my round trays with a square shaped primer tray w/cutoff, but no mention of small or large sizing. Your thoughts?