Most recently was modifying the Japanese tremolo pivot plate and pivot arms for more bar travel.
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I found out that at the very least the newest Japanese Mustang tremolo units have flat edges where the pivot posts sit rather than knife edges. I took a drill bit at a 45 degree angle and built new "knife edges" for my new tremolo plate after finding my Jag-Stang being a couple cents off dead-0 when pushing or pulling the bar like a crazy monster like I Do.
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Another modification I made was I sawed the pivot posts down, I had a new set of 3-slot posts and found the extra length for the 3rd slot affected string tension as well.Â
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Another new discovery, but not a mod, was that with the knife edges, I can loosen the pivot posts and get even MORE bar travel. Odd counter-intuitive beast the Dynamic Vibrato is, but now I can get the strings almost fully limp like a Floyd Rose and the tuning is 100% stable now with the Knife Edge mod to the pivot plate.