Originally Posted by Duuuuuuuuuude
Ask a guy in here called Ric5
Yep! This was my solution to uber neck dive on my Carlo Robelli 8 string.
I just used a hollow tube with a super long screw through it, but considering the long lever arm that is holding up the bass, it would be better to do it properly which would be somehow to have a fairly large diameter screw out of the bottom of the brass or aluminum rod that screws into the bass so you don't snap the mounting screw with the weight of the bass. I did go one size larger screw than what came on the straplok and ground down the head so it would fit inside the locking button. Probably takes some thinking which is why I went with the hollow tube. But then I don't play the 8 string much and it's been fine so far.
Basically if you want to get a bass to balance you have to get the upper horn support spot out close to the octave marker on the neck.