"old folks have trouble finding the off/on switch"

Chas, I know you didn't mean this literally, because I find the switch on my SD7 after only 20 minutes or so.
Don't forget we old folks used to be young folks and weren't always stupid.

You are totally right, what's perfect for me is quite different from perfect for Gary. What's perfect for DNJ is anything new until he uses it for the third time on the job!