Hi there. I don´t know much about instrument setup, so please forgive my probably stupid question.... I have the truss rods on my bass (almost) maxed out (maximum tension) and the neck is still bent into a U-shape. Is there anything a luthier could do with that, or there´s no point asking him and I should just use that instrument as firewood? It´s a 6-string Peavey Grind Bass, neck thru, string thru, mahogany, dual truss rod.... Thank you in advance for any advice.