Welcome to Fender basses. Throughout their history and different corporate ownerships no attention has ever been paid to the grain when the necks are manufactured. they are a production line instrument no matter where they are made. Some are great, some are good, some suck and there is nothing that can be done with deadspots and hotspots. Pickups, bridges, etc. can help mask the problem but won't cure it. There are many old valuable Fenders out there in beautiful shape that suck as a player. If you get a good one, hold on to it for life no matter what. If you get a bad one, unload it or learn to live with it. There is no consistency in Fenders and I've had a lot of them over the 48 years I have played.