I went to The Kodiak Firing Range today and rented a m&p 9 and the XDm 9 both in the full size gun. Shot them both and I really liked the XDm quite a bit more than the m&p. I was leaning towards the Smith before shooting but the Springfield felt so much better. But one thing about the m&p I thought was strange is during a mag change, if you put the mag in with some force, the slide would close and you were ready to fire. Any other pistols known for this?