Thank you very much! I appreciate the details and suggestions. And yes, I can imagine the security measures help filter a lot of noise.

I'll add photos to my home page!

I had originally drafted a larger and more detailed post with links to other discussions, notes about components, etc, but walked back to a simpler serial number/year ID request post when I saw that I couldn't add pictures or links. So I just wanted to get the ball rolling.

Thanks again!