"Stay away from the whammy until you’re out of ideas, because it is way too easy to rely on it. Of course, there’s a skill to it. When you’re playing something, it’s so easy to go to the bar and hit it and it sounds great. That’s why I try to stay away from it – you can get tunnel vision and get married to your bar. [...] You want to use the whammy bar as an accent, not something you rely on. Sometimes, yeah, you need a big divebomb and you want to hit a harmonic and bend the fuck out of it, and I’ve done that too many times in my career."
January 1, 1970
https://en.wikiquote.org/wiki/Vibrato_systems_for_guitar