[ERA Chas]

No Jerry-not joshing you.
I just looked up and learned you're referring to specific gravity. I don't think that's the test the store did. I think they started a load test and saw one cell out to lunch. In minutes the guy came out with a replacement, brand new, and I was happy. Still have a new 3 year warranty from Bosch.
I had been testing with my VOM and saw regular 12.5V. But two cells definitely had sulfate deposits.
Negative on the GSL-I'm in Long Island. Do wish I could meet you though. I'm the guy that sends you those cool links to your old FED. Where is Keeling these days?