Can someone educate me on Sig Sauers and which model is most compact for conceal carry? I am also looking at EMP .40 s&w and will decide between the two. My father use to carry a sig on duty and he swore by them. But of course this was his back up as the bureau issued Glock. I am currently carrying Glock 27 but would like a full metal set up option too. Maybe something a little smaller than the G27. Any suggestions, knowledge and opinions are appreciated. Thanks guys!