I think you would find one very hot and uncomfortable most of the time. Especially in warmer or hot weather. That is the reason I do not have one. And unless you wear a shirt under it and over it, it is a killer on the weapons finish due to the acid and salt content of the person's sweat! But there is another issue that comes to mind if you carry your CCW in one place in the cold weather and another in hot or warm weather. One should carry his or her backup or CCW Pistol in the same place all the time! At least the weapon should be on the same side and close to the same location! This because in a critical situation when adrenaline and instinct takes over normal thinking does not happen. It will be only "reaction to the threat"! During those times one might go for the weapon in the wrong place. And move to draw the weapon where they may have had it in the past at a previous location! Not a good practice to change locations and types of carry.
Only my two cents!
The Constitution is not an instrument for the Government to restrain the people. It is an instrument for the people to restrain the Government!
“Americans have the right and advantage of being armed. Unlike the people of other countries, whose leaders are afraid to trust them with arms.”
James Madison. Author of the 2nd Amendment