Have you tried standard 7-round magazines? Every failure I have encounter that was magazine related have been with 8-round mags that don't have the extended baseplate.
When you load those mags and get the 8th round in, how much compression is left....probably little to none. Find a standard 7-round mag and put seven in and see how much compression is left...if it isn't the same then the top round on the 8s is causing a lot of downward pressure on the magazine release and a lot of drag on the underside of the slide.
If you want an 8-round mag go get one with the extended plastic baseplate that will properly load 8 into the magazine.
Those mags I believe are from CheckMate. The only Checkmate I have are two 10-rounders in Super and are about to thrown in the trash...
Bob
If you can not deal with reality, reality will deal with you....
