I carry one of three ways.
1. Full-sized service pistol carried OWB strong side. The magazine in the gun provides 15 rounds plus a loaded chamber. The gun is equipped with night sights. Mode of dress limits when I can carry this way. I only use this approach when I can wear a longer than normal untucked shirt or long coat, and even then, I really only use this option for short trips which won't involve a lot of bending, reaching or sitting.
2. Subcompact carry pistol carried IWB strong side. A single magazine in the gun provides 8 rounds plus a loaded chamber. This gun is equipped with night sights. I carry a spare magazine in a pocket. Mode of dress limits when I can carry this way, but this option provides much more flexibility than option 1 as my cover garment doesn't need to be nearly as long. In practice, as long as I can wear an untucked shirt or jacket, I can conceal easily and comfortably with this option and gun accessibility is not an issue.
3. Subcompact carry pistol carried in a belly band. A single magazine in the gun provides 6 rounds plus a loaded chamber. This gun is not equipped with night sights. I carry a spare magazine in a pocket. I can carry this way regardless of how I'm dressed but comfort is compromised, and accessing the gun is much slower.
Regardless of what option above, I choose, I will also have a cellphone, a compact but powerful flashlight (500+ lumens) with a tailcap switch and a decent sized one-hand folding knife.
I don't alter my carry mode based on perceived risk. I always carry when legal, and my carry mode is chosen based on how I have to dress for the outing, or perhaps on other circumstances of the outing relating direclty to maintaining concealment. I don't have to conceal by law, but I choose to do so for a number of practical reasons and also based on personal experience.