I just disassembled my C9 and 45 to polish the feed ramps. After I got them good and smooth the best I could, I went out back to start breaking them in. I put a mag thru each and had no problems at all. I was using WWB from my local Wally World. These pistols are awesome and will be great for HD and possibly CC the C9 in a Fobus paddle this winter. I'll have to break it gently to my Bersa though. Anyway, If you're thinking about purchasing any HP in the future, I'd buy two!! Have a great night.