I ordered a .225 PB Checkmaker from Pat Marlins. It took a while to try it out -- Pat recommends cutting your coke can material with a paper cutter and I couldn't find one in town (I live about 10 miles outside a VERY small town.) Today I had to take the wife to a larger town for a doctor's appointment, and found a paper cutter there.
After scratching my head and cussing a bit, I got the Checkmaker set up (I ain't the most mechanically talented guy on the block.) I got the strips cut, the disks cut out and started to make my first gas checks. And the ejector wouldn't work on my Lyman Spar-T press. The short leg of the ejector was too short and the shaft of the lifter kept missing it. The long leg was so long that the whole thing stuck out past the primer arm attachment, and would simply fall out at each stroke of the press.
I emailed Pat back and forth. Pat was patient with me and he finally told me the ejector is simply 3/8" keystock, available at any hardware store. With the knowledge that I could make a replacement if I screwed the ejector up, I measured it carefully, cut about 1/2" off the long leg and it works perfectly.
I spent the rest of the afternoon making teeny tiny little bottle caps.~