I'm thinking about a PX4 compact in 9mm. I really want a DA/SA 9mm which is the driving factor. I read MD state police ditched them back in 2012 due to mag base plate working itself loose, but I'm not sure if this was resolved with a locking baseplate I've heard about or if this issue didn't occur on the 9mm. Anyone have a PX4 and have this issue. I'd like to hear any thoughts about the group has regarding this firearm or any DA/SA's worth looking into for CCW