So I've been carrying my wife's G19 as a backpack/truck/desk drawer/occasional CCW. I also have a Shield that gets carried often as deep concealed but I really don't like it nor am I very proficient with it like I am the Glock, mostly because of my very large hands. My wife decided she is repossessing the G19 for her EDC which leaves me needing to buy another gun, I know, terrible. The M&P compact feels amazing in my hand and seems that it will be very concealable which leaves me with just one question, 9mm or 40? Not another 9 vs 40, but yes, in this gun just by the numbers is there any benefit to 40 in this short barrel?