The main reason for developing the Tremolo Switch was that I wanted a stop that would not add any friction to the system when disengaged. Friction will always impair the smoothness and the tuning stability of your tremolo and even cool whammy bar tricks like flutter effects could become impossible to do. Some solutions surely has other benefits (full blocking), but I can do without them to ensure that there is definitely no friction added. It’s a question of the specific use case, I guess.​