Minor issue needs watching... - Pro Mag Ruger Mini-14 .223 Rifle Magazine

I ordered and received 8-10 round magazines for my new Ruger Mini-14 from Optics Planet. Everything arrived in good condition and in a timely manner. Each magazine was individually sealed in a Pro Mag labeled pouch. However, the first thing I noticed is that the magazines themselves do not have the Pro Mag logo stenciled on them (as seen in the photo), which I find a bit strange. Secondly the followers are not polished. Rather they are dull in color and texture. The Ruger OEM magazines have shiny polished followers. When compared to my two Ruger 5 round magazines, I notice that the Pro Mag magazine slide stop and feed lips have a slightly higher profile than the Ruger magazine. Today I loaded and fired 10 rounds from each magazine. Functionally everything appeared to perform well, with two exceptions. When I released the bolt on two of the full magazines, the first round did not strip completely from the magazine. A gentle push/tap on the bolt handle sent the first round into battery without further problems. I have yet to determine if this was due to operator error, or the newness of the equipment. However, no other issues were encountered. All in all these magazines are very sturdy, well made, and a great value.