Gerhard:
What the KISS principle term refers to is that we tend to over complicate things, which in turn, messes things up. It's like a friendly reminder between friends, "Keep it simple, stupid."
Have you ever heard of a guy named Rube Goldberg (no relation to the wrestler)? He was a wacky inventor during the 30's. He'd make some real complicated contraptions to do some of the most simplest things, like scratch your nose.
On the air stack, I installed that elbow like in the TM, and was thinking about extending it higher. I then thought if I got into water that deep, I'd want to be wearing a wet suit.
Naw, I'll stick to bridges thank you very much. I guess that's what happens once ya enter the ranks of "Old Fart".
Later
Ugg