Tried several JB's in several different guitars (335, LP, & SG). They sounded lousy in everything. Sold them & everything else I've tried since then has been better. For some types of music, in some guitars, they obviously work and have many loyal fans. I think their Achilles heel is just how often they don't work, which is why they have many detractors. You consistently see a lot of used ones sold on eBay, more than just about any other used PU. Lots of disappointed players. A PU promoted this much should have a higher success rate, like the '59's, PG's, & Custom. People shouldn't be dumping them this often.