Thanks for all the comments.
This is replacing a Glock 26 for everyday carry. Just wanted a larger caliber and always wanted a 1911. I know glocks have their own safeties, but I was never able to get comfortable with CCW'ing with a chambered glock. Almost got to the point of putting a thumb safety on my glock, but decided to just switch platforms instead.
So, back to magazines, what would be the best brand 7rd magazine to put in this to remain reliable and to keep a flush fit in the grip?