Explain. Neck shifts when putting on new strings? bends out of shape. I don't believe it is a quartersawn maple which they wanted more vintage. Not that all quartersawn necks are more stable but in general some are slightly more stable dependent on the cut. Especially coming from a bass Luthier. Plus its a newer bass. But over all these are really nice sounding basses. I know some like the AV basses better and some say the AO is better. But in reality like all fenders some are better than others. Glad you love yours. I feel lucky having it.