I carried a Combat Commander for about the last 30 years. I now carry a P229. I dont see any difference in wearing it or hiding it.
Realistically, its not the gun, but more what you use to carry it and your attitude. I never had any troubles carrying and hiding full size 1911's or my SIG P226's either, summer or winter.
I also have a P239 and recently got rid of a Kimber Ultra Carry. If I had to choose, I'd take any of the SIG's hands down. Out of the box, they work and work well, most 1911's of late are not that consistent or reliable, especially the smaller ones. My Ultra Carry was accurate, but was not reliable. The P239 is a great "almost" pocket pistol and is a good BUG to your carry gun and can be had in the same caliber. Its about the size of my P230's, just weighs a little more.