Leon wrote:

That is how I learn. But that said I have been working with CAD
programs since 1986 and knowing "what/that" they can do some things is
half the battle.

I remembered "what they can do" collectively. I just couldn't remember
how to use them to do it! That said, I thinking "preaching sketchup" is
good. I've come to the belief that "good art" is the result of "good
design". "good enough" is another topic (and a perfectly valid one).
Don't get me wound up! ; )