Why does a locking tremolo system keep a guitar in tune better?
The places a guitar string is most susceptible to stretching and slipping is around the tuning peg, nut, and at the ball end. A locking tremolo system clamps down on the strings at the nut position, eliminating the constant stress on the string windings at the tuning pegs. Most locking tremolo’s also have a clamp-like mechanism at the bridge, that clamps down on the string to keep it in place, eliminating the need for the ball end of the string altogether. The result is the constant stretching that occurs in these areas with the use of a standard tremolo is now greatly reduced, allowing the guitar to stay in tune regardless of how hard you work that whammy bar!