I have a 1989 Fender Precision bass Plus. The tuners are a little loose for my liking. They turn really easily and the low E has a slight amount of slop if you wiggle the key around. They seem to keep the guitar in tune very well, but I'm not used to having tuners feel so loose. Just going by how the the tuning keys feel on my other bass and my guitar. Is there anything I can do to tighten them up and make them slightly less easy to turn?