I use the strap lock dunlp decade. In the era, my LP has dtach I retained by the strings and the middle, if the broke and the ground. I said, "not twice." This strap lock is effective. It is more difficult than installing schaller (pice clip), but then he stopped moving. This is the kind of utensil essential, especially on a guitar of quality but the prices are excessive. If the manufacturers taient honntes, should be worth a ten, twelve Euros, not more. But who can do without it? Think Periodic lubrication.