Interesting update... I was especially interested to see that there was a change in the magazines that's somehow slipped by unnoticed, which is leading me to think that there may be even more that we don't know about.
I can see the need to change out the striker block and striker, and maybe the trigger assembly just to keep things working, but unless the magazine was causing part of the problem, I don't see what the issue there was.
It was advertised as a "dropping" issue with the safety off, and unless the pistol was loading itself as well, I fail to see how the magazine was involved, unless it pushed something mechanically that forced the problem. I'd love to see the design drawings of it to do a bit of "engineering investigation".
Guess I'll just have to make photos of "before and after" and try to figure it out from that.
WT