#1
what does anyone know about them?

i saw one on the Lennon Les Paul of Musicians friend.. and im not payin 5000 for that.

theyre for sale here .. expensive.... but im very interested.
#4
i play blues-folk-jazz-grunge...

i checked that wiki.. but has anyone ever personally heard any?

that wiki says humming was a big issue back in the day... are todays models any better?