So after finally getting to the range again I took the FN and had zero failure to feeds etc.
The kicker... it was with WWB b/c I have a couple hundred of that left. That being said I also brought some federal JIC the WWB failed me.
Also, from another forum/posting, multiple individuals reported they had my problem but they "broke in" their magazines. This is completely unnecessary and affects the properties of the springs in no way, shape, or form. I took a crack at it anyways with the 2 mags I knew failed to feed. They functioned perfectly. Between the wife and I each mag got used at least twice.
I'll advise of any future WWB problems though so everyone can say "told you so." ;-)
Lefty with a G17, XDM-9, & FNP-45.
"You won't know I carry until your actions require me to use my firearm, not show, not draw - use."