matsickma
Senior Member
I would say if you are going to add a Bigsby make it a Guild bigsby. A S90 with a well installed Guild bigsby would look pretty cool and would not degrade the value of the guitar. The S90 is a lower priced instrument unlikly to be greatly effected in value from the addition of a bigsby. I would not install a bigsby on a S100 "acorn" model as that would significantly reduce the value but a S90 is not in that class. The biggest aestitic problem you will have is related to the closely mounted diagonal stop. It is difficult to hide the holes. It is easier to hide the holes on the earlier models where the stops that are farther away from the bridge. I have done a mod to a S70 and someday I plan to make a little cover plate from old pickguard material to hide these holes.
If I had a S90 I would seriously consider making it into a S90 "deluxe". I think that would be a pretty cool guitar. I would also probably alter the wiring to provide independent control of each pickup.
Here is an example of a S70 mod. I installed a NOS set of Guild S100 Deluxe Guild Bigsby and tension roller assembly to a S70. You can still pick up these parts on ebay from time to time. I would wait until they come up and then snag them for your project.
Another version of a Guild bigsby modification can be done by using "LP" stop as shown in the bottom picture. In that case I installed a 1980 model Guild stop.
M
If I had a S90 I would seriously consider making it into a S90 "deluxe". I think that would be a pretty cool guitar. I would also probably alter the wiring to provide independent control of each pickup.
Here is an example of a S70 mod. I installed a NOS set of Guild S100 Deluxe Guild Bigsby and tension roller assembly to a S70. You can still pick up these parts on ebay from time to time. I would wait until they come up and then snag them for your project.
Another version of a Guild bigsby modification can be done by using "LP" stop as shown in the bottom picture. In that case I installed a 1980 model Guild stop.
M