I use matching wood such as mahogany and make thin shims. Then I flatten and level th nut slot and lightly glue the shim in to act as a solid base.
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Fazool "The wand chooses the wizard, Mr. Potter"
000-15 / GC7 / GA3-12 / SB2-C / SB2-Cp / AVC-11MHx / AC-240
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