I would guess the limit of the Solid 5 would be to machine a custom 5 string bridge. Not sure how well it would work with the single bridge.
You've got a bunch of new parts that you need to deal with. I doubt the ROI would be worth the hassle.
As for the single bridge, you could conceivably do the split bridge like he did on the Pino Palladino 5-string (E-C) custom.



