When I got my strap I was really excited about it but, that excitement wore off as soon as I saw that, because my guitar has the pin in the back of the guitar, the only way of fitting the lock in it would make the design of the strap backwards and there is no way to fit it any other way. If the lock is design to only be able to fit it one way, at the very least it should say in the description that guitars that have the forward pin in the back of the body will not be able to use this locks.