Ok, after about ten more times switching the key to start, the starter did NOT engage. and the voltage stayed at 11.9v VS 10.7 when the starter engaged.
So by my logic I suspect the contacts in the solenoid.
Anyone have other thoughts and a way to differentiate. Oh, I like that going for a differential diagnoses!
Mikek
PS. I lament selling my Simpson 260, I had to grab a panel meter and adjust it from a 75 volt meter to a 15 volt meter. Digital meters are not real helpful for this type of testing.