E. C.

shepp, Thanks for the welcome. I'm here because I have problems too. The generation of the parts is beyond the scope of the problem. If you bought 2 supposedly identical parts from someone and they functioned differently, don't you think you would be in the right to ask them to replace the non-functioning part and let them get it right rather than chasing a bunch of specifications for some maybe part? Best regards, -ec-

If you bought 2 pmags at the same time, one works and the other does not, you have 2 different pmags! Carefully compare the two and return the one that does not work. Specify the difference if you spot it. Vendor should replace different product!