Alright, here's what I'm working with. An American 2012 Jazz Bass (wired with stack knobs instead of the standard VVT setup) with Seymour Duncan Antiquities and a 1975 Ampeg V4B with a matching 4x12 cab. No matter what I do I cannot get a good slap tone out of this thing. Which frustrates me because a lot of people say the Jazz bass is one of the best slap basses out there (even though I beg to differ, to me that award goes to the Music Man). And several people say they get perfectly good slap tones out of Ampegs. And I know Technique has a lot to do with it as well, and I know it's not that (not that I have flawless technique) but if I slap on another bass through another rig it'll sound fine. As far as slap tone goes I'd just like a good standard slap tone like this would perfect: Any help would be greatly appreciated guys.