If strictly a carry gun, choose a 2.0 shield in your caliber. If you'd like to carry AND shoot at the range frequently, get a compact. If you'd like an enjoyable range gun that you can also carry, get a full size. I own the shield and full size. I love carrying the full size but when I want comfort and strictly carry I carry the shield. If I had to travel and be in and out of vehicles all day, shield. If it was more relaxed or I wanted the gun I hands down over, my 2.0 fs would fit the bill. Honestly, if I had bought the 4" compact 2.0 I bet I still would have gotten the shield...