I've only been gigging for 50 years, same bill as Barron Knights, Bob Monkhouse, Slade,Black Abbots, Ken Dodd, Marmalade, Joe Loss, Edison Lighthouse, Joe Cocker, Ray Mcvay bla bla what do I know?
Thanks for taking the time and trouble to show me part of your bass.
I think the S1 was introduced around 2003 for a few years. Not ALL Jazz's etc were fitted with the S1 switch. This one does not have this switch. I preferred this particular jazz because of the tone. I know what the S1 does and it does give another dimension, but I find the standard wiring produces a clearer tone which suited my needs.