[SpruceTop]

Originally Posted by MaurysMusic

#nomoretears

You can sand the bottom of the saddle and install a UST just like you do on a short saddle. You just need to make sure that the core of the saddle is squeezing down on the UST and the wings are not impeding the downward pressure. Sand the center core of the saddle almost the thickness of the UST, if that makes sense. In this scenario, the wings of the saddle will be floating slightly.

UNMODIFIED saddle:


Sand the area "painted" green below, where the UST will sit:


Saddle pics courtesy of http://www.chrisalsopguitar.co.uk (from a quick Google search).

Good advice and even better if access to a Bridgeport mill and dial test indicator can be obtained to maintain squareness of the cutout, and after cutting it to an initial depth, cutting the depth of the cutout to remove another .001" to .002" at a time until the best overall tone and equal string output is obtained. I've used a Bridgeport/Bridgeport-style mill several times over the years to flatten the bottom of drop-in saddles for usage with a UST pickup. I know! I know! Sorry for complicating things .... But Wait! I have a simpler process that is just as accurate but doesn't use a knee-mill machine tool to accomplish the same end result but does use a dial-test indicator to help accomplish the task.