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SETTING A VIBRATO UNIT
“When you’re setting up the trem [aka vibrato unit], I would get your guitar into tune first then tighten the screws [of the adjustable claw inside the cavity on the rear of the guitar that adjusts spring tension] until the underside of the bridge is just resting against the body - so you can touch the arm and it will move easily,” Matt explains. “Then you keep methodically loosening the screws, adjusting them about a quarter- or a half-turn each time, both by the same amount - and retune your guitar after each adjustment. Keep doing that until the tremolo is in the position you want it to be in. Doing it in small adjustments is the key if you don’t want to get lost in endless loop of adjusting and retuning.
“Another tip is to keep a running tally - on a piece of paper or on your phone - of how much you’ve adjusted the strings, so you can always take things back to where you started if you want to begin again.”