Apple a Day,
Personally, I think everyone did respond to your original thread (premise) it's just that the majority of us are quite comfortable in what we carry and our selection of ammo and see no need to change because of climate.
Now we might change guns because it might be easier to conceal a officer model 1911 versus a GM 1911 in warmer weather or perhaps a compact 9mm and maybe something even smaller, depending on the manner of dress.
I see no reason to switch from my preferred carry load because some one might be wearing more layers because of cold weather.
The hollow point that gets clogged with fabric turns into a fmj/ball and will penetrate deeper, but should it not be plugged then it should expand and since it happends to be a 45 caliber bullet it can't shrink and it has the ability to expand to 60 caliber, so I am quite confident in the round and my ability to put it where it needs to go.
So, unless my preferred carry gun is down for work or I have run out of my carry load or find the ammunition is sub standard, I will not change either caliber or type.
Oh, by the way, my preferred carry load is a 200 +P GDHP by Pro load.