26 Brian_66 9 months ago The Rick 660-6 has a 24.75" scale, wider 1.75" nut width and a 10" fretboard radius. As Unknown Hinson demonstrates, Rick 6's can rock pretty good. Brian66 if you could tell us more about what was done to adapt/mod or replace the Rick bridge base to take a Tru Arc. There's no way you could drop a Tru Arc right on to a stock Rick bridge base. Proteus had me take all kinds of detailed measurements of the guitar. He then made a TRU-ARC “Rock Steady” version out of brass. He then figured out how to machine a Rick base with two screw post with slanted alignmenment (to help with intonation I guess). The whole operation cost me less than a Mastery Bridge, but then again, I don’t think his motivation was profit. I think he was just curious if it could be done. Who knows, it may be the only Rickenbacker with a TRU-ARC bridge?