I just was in the middle of a rather lengthy reply when something happened and I lost it all. I won't try, at the moment, to repeat it. However, I do appreciate all the help and advice you all have given. I do plan to visit the local brick and mortar here in Denver (and thanks for the head's up). I do plan to continue to work my way through this, and to vape without inhaling. At this point I think that inhaling, much as I want to, is just not a good thing to do, given the ongoing problems with my lungs. Continue to vape as though the ecig were a cigar or a pipe, i.e., hold it in your mouth, exhale via mouth and nose, not take it into the lungs. And, should I get that far into it, I will try nic without flavoring mixtures, because I fear not the nic the but the other stuff, like the catastrophic other stuff that accompanies the nic in "real" cigs. Quite honestly, at this point, I don't know how serious I want to get with this stuff (going from e cigs to vaping apparatus, etc.), because I still think that this is a way to stop it entirely, although I don't know if I can do that. I do know this: in June of this year, I was diagnosed with COPD; I quit smoking, with the help of the patch. I've been experimenting with e cigs to deal with the ritual/nicotine habit, and it's been helpful. So far, so good. At the very least, I'm sure that vaping is better than smoking. I know that my lungs are not going to get better, but if I can manage the damage, well, I think that is all I can do. And perhaps the "don't inhale" thing is a bit of a "too little too late" thing, but well, what else?
I thank all my unknown colleagues for their help and advice.