But it's difficult to keep up with your constantly changing parameters and implausible scenarios.
The parameters have never changed. Your interpretation of them has though. From the OP - So here's my question, if you had to choose one, and ONLY ONE, semi automatic pistol for everything, what would it be? A pistol that can be used for home and self defense. A pistol that can be concealed for every day carry. A pistol that you can use for hiking, walking the back forty and hunting(everything from elephant to squirrel,(ie; survival food)) with. The same pistol can also be used as a range gun, a truck gun and a competition gun. And of course, a plinkin' gun. - That Never changed. The same premise is still there.
You really want one pistol to carry concealed, home defense, hunt, take to Alaska, and take to Africa?
Yup.
We all know this is a question that will NEVER have a "right" answer. It is an almost impossible question to answer with a correct answer. There just isn't one. What feels comfortable to me, won't feel comfortable for you. What you can carry and shoot with, I can't. David E, I think you are reading more into the question than is really there.
As I stated before, I have SD/HD guns, and concealed carry pistols, and plinkin' pistols, and range toys, and just plain Fun guns. Just not an everything pistol. Meaning, I have a handgun for most, if not all situations. I just don't have
one pistol for all situations.
And I do like the idea of the Sig combat model.