Tonight I tried running new-to-me mats. I have a better idea of how many mats fit in a half magazine, because I discovered that I had way too many. I bet there is a lower case "e" count that would allow one to quickly determine if there are too many mats to fit. So, self, check it out. Also, please inventory mats before taking the time to load them into a magazine. After what appeared to be a full font, I discovered I only have one "." This is a problem. Anyway. Always learning. But never seem to learn that you can never have enough patience for this machine.