I have a like-new speedo for the Sprite, still not sure if it's correct. Well, I'm sure it's not correct. I'll have to deal with it later. I think when I was messing with the gauges, I should have been concentrating my efforts elsewhere.
I'm not sure at all if a S class synch procedure is like a C class. I should have a 97 S class owners manual at work, I can check there for you. Hopefully I can get on the net at work and post the answer from there shortly.