Hadn't really thought about the balance, but it's certainly true. I have used them on the '76 (currently light 66s), and a VP (GHS) for years. It literally never crossed my mind about trying them on the '64 until talking with J.T. DTFs are all he uses on long scale basses (La Bella endorsing artist), and that got me to thinking why not try it. I like them on a few other basses so maybe. I did and honestly figured it was going to be short lived. Turns out the longer they were on the more I liked them. Actually a shock to me. I told him while liking them it never crossed my mind to try them but was glad he got me to thinking about it and am I did. Likely the last string set I'll need to buy for that bass. Clearly not for everyone, but I love the tone and the feel.