There is a 1990 Ken Smith for sale in the Talkbass classifieds with what the seller claims are Series I electronics installed by Ron Wickersham. I don't think of ever seems Series electronics in a bass made by somebody other than Alembic, except of course those old Guild Starfire jobs from the early 70's.
https://www.talkbass.com/threads/smith-roscoe-conklin-alembic-smith-fodera.1296949/#post-20308966
I have no affiliation with the seller.
Wow! Worth looking at just to see jeffthebassist's bass collection!