Please make sure not to allow the loop of the string itself to come into contact with the sharp-edged part of the fine tuner when you are using a loop fine tuner. To prevent this, we offer a synthetic insert for the loop fine tuner itself which increases the lifespan of the string.

Regarding the ‘E-String with ball,’ it is important to choose a fine tuner which has a suitable design and thus a significantly larger hook, otherwise the ball can break. Your luthier will be able to advice.