I am very paranoid of playing around with the allen key, it seems that the key supplied with the bass I bought does not seem to be the right fit. The key will not fit snugly into the hole and tend to wriggle a bit. I am really afraid of wearing out the grooves in the hole and I also can't really tell if the neck is straight enough or not.
Another thing is that my current strings were stock and I also don't know of their gauge. Changing to another guage will require quite a lot of work like measuring the string and saddle heights....sianz