When selecting a Bigsby for a guitar, The 2 main decisions are whether it will require a tension roller or not. Most archtop guitars can use the B3, B6 or B11 (or B60 licensed) vibrato systems that do not incorporate a tension roller. The way these guitars are designed results in just enough “down pressure” between the strings and the bridge of the guitar. A certain amount of down pressure is required to keep the strings in place during playing.
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