Hello I've been working on a project here for a while now and I wanted to add a pickup to my pj bass that would allow my bass to be able to switch from a jazz pickup tone to a pickup that would give it a vintage double bass tone. This was sort of the tone I'm looking for; I'm well aware that piezo design acustic or 'realist' like pickup, similar to actual double basses where pickup would hook up to the bridge. But from all of the double bass pickups, like David Gage Realist, Schertler Dyn-B, Fishman Full Circle, Revolution Solo II, Bassmax, Shadow pickup (underwood style), Shure Beta, FWF, etc. Are there any pickups that I can install from any of these or other to my bridge area that will hopefully give my p/j electric bass an authentic double bass sound or is there a piezo pickup that already does this that goes to the bridge? Thank you all for reading my post, if anyone needs more details, I'll be glad to share (such as my bass is fretless w/ ebony fretboard). Cheers!