Thanks all.
I inspected and cleaned the gun prior to first shooting it, and observed nothing out of the ordinary. In fact, I liked what I saw, as the pistol seemed well made and had an interesting design.
I did not disassemble or inspect or clean the magazines before first shooting the pistol, but I did that just now, and observed nothing out of the ordinary. Seems like typical modern 9mm double-stack design, and nothing seemed amiss.
As for the auto-forward, yes, this pistol did that once when I was loading it, and didn't experience the FTF in that instance. When I utilized the slide stop (that one's for you, Iron Giant), that's when I noticed the FTF issue about half the time. I'll see if pulling the slide back and then releasing it vs. using the slide stop yields different results. I have a lot of rounds through the Glock platform, as well as many through SIG, HK, and Beretta, and have nearly always used the slide stop lever to release the slide and chamber a round from a full magazine, yet never with stoppages such as with this P10F, so I'll try to curb my muscle memory and see if I can get this pistol to run 100%.
And again, the issue wasn't with a slide stop interfering (best I can tell), but rather with the nose of the top round of a full mag getting pushed into the lip of the feed ramp on the barrel's chamber. If it does this with FMJ rounds, then I don't have high hopes for most self-defense/duty rounds. We shall see.
Thanks for the suggestions...much appreciated. I'll post back after I get more rounds through it.