Originally Posted by MusicMatt
Don't fret about the closed slide 10 round mag loading issue. It sounds like you got a model from the same batch as mine. I also have a great trigger on mine and the mags took some force to load with the slide closed. After putting a few hundred rounds through mine, I am beginning to notice that the mags are becoming easier to load.
I would wait to do any kind of mag modification. Just remember, the majority of all reloads are going to happen slide open.
I am having this issue as well. I just picked mine up about a month ago but due to the 9mm shortage I've only put about 250 rounds through it so far. So far I love this gun.