A standard string height on classical … Both nut height and the straightness of the neck of the guitar will affect the action at the saddle (note that when I say “action at the saddle” that this is usually measured at the 12th fret). If the saddle has two hex screws, be sure to turn them the same amount so that the saddle stays level. The following figure shows the location of the hex screws. Now we’ll use our string height ratio to mark the saddle so we know how much material to take off the bottom in order to get the desired string height. Setting the saddle height on an acoustic is a crucial part of setting one up, and sometimes you’ll need a replacement. But similar to top nuts, a saddle pretty much unique to each guitar so it’s best to create a bespoke one rather than an off-the-shelf pre-cut saddle. If you do a traditional Martin style bridge (pins close to the saddle) and have a saddle height of 0.140" on a new guitar … It’s important that the neck and nut are set right first before doing anything with the saddle. The subject of this thread (1/16" saddle showing) is the very reason I said 45 degrees for the string break angle. You can also use the saddles to adjust the intonation of your guitar. Turn the screw clockwise to raise the saddle; turn it counter-clockwise to lower the saddle.