Lets get back to the issue of the light primer strike on the sig. I carried sigs for years, and some ammo I would get light primer strikes, it happens with some ammo brands. I would call sig, they will pay for shipping, and have them replace all the springs.
I carry a full size 1911 full custom every day. It is by far the easiest firearm to conceal and carry. If you get the right holster you will forget you have it on. It is very slim, but it only holds 9 rounds. However I carry a back up mag, and I practice coming out of concealment getting on...