Compact frames are usually lighter and easier to conceal. On the other hand, a full frame generally provides a better grip. In the end the choice is yours, try them both out and buy the one you like the most. The best thing about guns is that you can always buy more Overall, your choice of gun (M&P) and caliber are solid. I personally wouldn't change my carry routine around my family. When I first started carrying my parents were slightly opposed, now they don't mind a bit.