The UPS guy just dropped off my new VB-2 head. I got a great deal on it ($515.00 shipped) it is new and was on clearance from a GC store in OKC. They removed the 6 JJ EL 34 power tubes for shipping. My question is, after I reinstall them do I have to have the amp bias reset? They didn't mark what plug the tubes came out of. The manual says to set the bias when replacing the tubes. The VB-2 doesn't have auto bias so I would have to take it to a shop to have it done. My new Eden 212 cab came too so now I have two of them!! Thump-thump!!