Hey guys, I have a Yamaha TRB1004. Bought it about 4 or 5 years ago. Love this bass BUT I've had to replace 3 tuning keys. The center keeps snaping off. I've had tuner replacements from 3 difference manufacturers. There's something about the design of the neck that adds extra stress to the tuning keys. At least, that's all I can figure. Anyone else have this problem?