first off i have a fender 64 vibroverb custom, and i'm wanting to re-tube it... I have to admit that i'm pretty green when it comes to the inner workings of tube amps... Im quite keen on using JAN Philips 7581A's & JAN GE 12AX7A's however, the local fender authorized repairer doesnt use NOS tubes... he refuses as he states that even if you bought a matched pair they may not neccessarily be matched in your amp? is this true and what difference would it make...? I'm also thinking about replacing the speaker, from what i gather the JBL D130F is the benchmark, but given that they're pretty hard to get what would people recommend i use instead... I'm quite prepared to spend around the $500 mark to get my amp cooking... Also, i've read in gerald webers' book that a 'cap job' is highly recommended on new fender amps... any thoughts on this... also, what would people suggest i use for the other tubes in the amp eg, reverb, vibrato etc... thanks for you help Luke.