I'd like to preface by saying that I have searched and haven't found anything conclusive-or anything at all for that matter. What are they? I'm thinking of the Dimarzio Ultra Jazz and Model J, plus the discontinued Samarium Cobalt from Fender. Am I missing anything? I usually run the Ultra Jazz or the Model J with a Dimarzio Model P for a big gritty sound that can be dumbed down a bit, but I'm wondering if there's anything else out there.