I took advantage of Musician's Friend Rickenbacker sale and picked up a Midnight Blue 4003. I'm loving the bass so far, but I've notice a odd creaking noise now and then, the noise seems to be coming from the end of the fretboard by the bass pickup. I can reproduce the noise by pulling lightly against string tension on the neck at the nut and bracing the body with my plucking arm. The bass holds it's tune for weeks and there are no buzzes or dead spots. Is this a common Ric thing? Is there something going on with the truss rods maybe?