The biggest difference is that TUSQ XL is impregnated with PTFE; the lubrication prevents strings from binding in the slots. TUSQ is not. You get better tuning stability especially when using a tremolo or bending strings. TUSQ XL also has more of a midrange boost as compared to TUSQ.
Modified on: Wed, 26 Aug, 2015 at 2:58 PM
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