Just as I thought the post has exhausted its potential, got 2 nice posts. Thanks Dave, Tano!
Dave, I can relate to your last paragraph 100%. It is a curse and a blessing. A blessing in a way that you do not have to rely on somebody to fix things and sometimes "repairs" come with ease (sometimes not)

I usually try to change things within a month of initial recording, before lichen starts grow over these tunes.
I misspoke when i said "sketches"... My sketches are more like raw demos. With structure, lyrics everything is there, but not ready for "prime time" one way or another. I have recorded over 100 of these demos. To be realistic, I am hoping to re-mix, re-record or change lyrics on about 20-30 of these when I have more time on my plate. For now, I feel that I still have potential of writing new things, so probably that is what I should do. At least my guts are telling me to do just that

Tano, Thank you for the input! It gave me an idea. I will start going through my stuff, pulling things that I want to re-do and finding their project folders. Thankfully I kept most of Cakewalk files from 20+ years back till recent. Probably now it is a good idea, to gather them from old dusty hard drives into something sexy, such as USB3 flash drive. And you are absolutely right about: "new knowledge and tools" that is my hope as well. That when I finally get to them I will know more and things will have a much better workflow.
Misha.