So I have decided to break in my PM40. I have a smooth running CM9 and I did the suggested prep as I did with the 9. I racked the PM40 200x cleaned and lubed it.

2 Idiosyncrasies

1. When I use the slide stop to release the slide the slide moves forward then stalls for a second then goes into battery. (Both mags)

2. One of the mags will not hold slide open.

any ideas ?