Identify which mags are giving you problem for sure.
I will number the mags with a permanent marker.
Should problems arise (number 5 mag, for example), then I know which needs work or replacement.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)