Geezer Butler is one of my all time bass heroes. It took me a couple years of bass (started at 13, 20 years old now) playing to notice that he was such a massive influence. It was so incredible how he could lock with Bill Ward's drumming yet flying through some wicked lines while hammering on the bass neck. Definitely a fan and I'd love to try these pickups out in my squier p bass and try some other mods.
New York Bassists Club #23, Fender Precision Bass #900