Hi, I do some electronic replacement on a friend's bass. He got a standard 4003 neck pickup and a HB1 in bridge position, he will only use a 1 Vol and 1 Tone and switch pickup with a toggle (like the 4004 model). - Rickenbacker seems to use actually 330K pot on all their models, but some people seems to prefer a more vintage way or a mix of 250K or 500K, what do you think it will be the best on this setup? - 47nF for tone? - How do you think it's better to wire the HB1 pickup, series or parallel? I don't know how they are wired on 4004 bass or Lemmy's bass. For sure we will love do like Al Cisneros get his massive tone! (4003AC looks cool). Thanks a lot for your help, really appreciated.