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    Sperzel Locking Tuners vs Schaller Locking Tuners

    Hi everyone, I'm about to order some locking tuners for PRS Tremonti Custom SE and I've heard that both Sperzel (E70's) and Schaller (M6's) are both pretty good choices for locking tuners. I was just wondering whether anyone has a preference between these two and how they both compare against...