Jeff played keyboards for a very short time with the Teardrops (around 1982 - I used to know all this stuff but it's faded memories now) after Julian finally got rid of Dave Balfe. As a contibutor to Teardrop history I'd have to only give him a 1 out of 10.
And yes, he was a xtian. I had a friend at Uni who knew him from their church where he played keys. Lovely!