Foreword: I do like Duncan and his/their product, so no criticism here, since I know you swim on wavy waters whenever this pickup comes up as a subject... Duncan (as a brand) claims that the SPB3 is their most popular P pickup to date, every "official" review is usually very positive, it's often cited as a good technical improvement over the traditional split design, something to go for... yet it usually gets very mixed reviews here on TalkBass and on forums in general, at least from non-sponsored users. And I'm personally wondering: how come do I know very few "famous" artists visibly sponsoring or sporting/praising this pickup if it's their most popular design or something to go for? This is a fair enough question, I think... Other brands do "less known" quarter pounders too (Aguilar...) but you usually see traditional poles mounted in pictures of famous bassists' very own P basses. I do know of Nate Mendel (and I do like his signature model) but I also know that he often relied on his Bob Glaub Lakland or other basses when recording - eg: Glaub -> Ashdown ABM -> mic for Waisting Light, which is also my favourite of theirs tone-wise, regardless of the production story behind it. Mark Hoppus? Anyone outside of the pick playing/punk rock scene (nothing wrong with either of them) I'm missing out? Is it really that popular as a swap, even in very professional rigs? I can't personally comment on it. I happen to have a QP single coil P, which I'm not taking into account as it's a different pickup with a different design. I like it, and I think that larger poles on that single magnet design can have its clever advantages. But how does it compare to its more popular split counterpart? Is it also possible that forums can tend to create a "bias" or placebo effect, where a particular opinion on something becomes a sort of "general consensus"?