I have had my JPMM for about 3 years and my D string is buzzing itself dead. I have to raise the saddle quite high to get it to be playable and the action at this point is pretty high. I did read that there were some truss rod problems in the beginning JPMMs. It also gonna cost me a boatload on shipping it to EB from CT......is it easier just to buy a new neck and be done with it?