Relay protection with diode.

I think that's why I used the words "it's so minimal it's not considered" I type extremely fast when I'm thinking about something, I usually spend 4/5ths of a post correcting spelling typo's and grammar and it doesn't show most of the time The part that seems to be confusing everyone was just an accidental tack on from thinking with my fingers so to speak. For anyone that's viewed some I've my longer babble posts this shouldn't be surprising. I DID think it was clear at the time. Sorry about that.