Ah, so the bigfoot optos are the ones that identify the direction bigfoot is facing, I guess. Makes sense.
That's just odd, though, cause the one under the bracket in the first photo cclay posted, identifies as "Bigfoot opto 1" (#86) - ie. one of the two that are supposed to be under the playfield according to the manual.
Which switch is that one really, then? I'm guessing #66 (left ramp main) ?
Seriously, thanks for your help so far, people! Still have some work left to do to get this White Water in working order, but right now I'm searing a very clear light at the end of the tunnel. If anyone know where to get a double wire-gate bracket used for the Insanity falls/Bigfoot bluff shots, let me know!
Or, alternatively, two properly sized bracket types that can be installed together, to work just as well.