I just got a used danelectro longhorn mailed to me. The guy took the neck off to mail it and when I reattatched the neck and set it up with a new set of rotosound flatwounds, the strings touched the frets around the neck pickup. I think that the problem is that the bridge is too low-- and it has a rosewood saddle that is not adjustable. What's the best way to get the action to a tolerable level? I temporarily put some cardboard under the bridge to raise it a little. The only problem is that the cardboard pretty drastically cut the bass's sustain. Should I put a piece of cardboard in the neck pocket instead?