Two questions: first, do you look at other people, especially those dressed like yourself, wondering if they're armed? Here I assume that you are at least a little concerned about other armed people. And have you ever noticed, as I have, people clearly overdressed for the climate, like wearing a leather vest--and flashing steel even at that?
Secondly, for "normal" carry, the gun picks up sweat like it was left out in the dew. Has that ever been an issue as far as the gun itself goes?
My other comment is that alternative carry methods, at least for certain circumstances, have proved to be problematic for me, mainly from a speed or fumble standpoint. While for some situations protection and retention of the gun is handgun is important, if it becomes difficult to access, all is lost, even if you didn't lose the pistol. So basically we go back to square one and do everything the same way all the time everywhere, if you follow me.
I am reminded here of a story published probably twenty or thirty years ago in some gun magazine. The writer was talking about the virtues of a stainless steel Colt Officer's ACP. It seems he lost it once up in the mountains when there was snow on the ground. He found it in the spring, though, and the only things corroded were the sights (don't remember if he said anything about the ammunition). Frankly, I'd have been too embarrassed to write about losing a pistol like that. Of course, there are other things I'm embarrassed to write about, too, so I guess we're even.