Dave,
You are sure waxing philosophical today!!
As an engineer, I know what you mean. Sometimes we get bogged down in details that, in the long run, probably don't matter. But, that kind of stuff just pops into our left-brain and sometimes it is very difficult to get out (just ask my wife).
Thanks for aligning our compass!!
I think that I will mount mine up high (like 1" from the top) because, if nothing else, it will be less likely to interfere with anything that I smoke.