I am currently undertaking my first real task in repair work, thinning the bridge on a Takemine. After carefully checking the neck set, relief, and seting the nut slots to the correct depth, I needed to lower the saddle, which after removing .060" worth of loosely fitting shims from under the saddle, there wasnt much saddle protruding from the bridge, maybe 1/8" max (Sorry, i dont have my notebook with me while I write this) so after looking at and measuring the bridge I decided it needed to be thinned by about 3/16th or so. After performing this operation, which went well, I wonder just how deep the saddle slot should be? It looks like there's about 1.5mm worth of bridge material left in the bottom of slot, with a minimum of 4mm depth on the treble side, up to about 7 mm in the center, tapering back down to 5mm on the bass side. I understand I dont want the slot to be too shallow, or risk cracking the bridge, but i'm not sure if I want to remove too much more from the bottom of the slot? Can I go right down to the top, like the old thru slot martin bridges??
I'll be making a bone saddle and nut once I have this bit figured out.
Any hints here??