Last May I had some work done on a 5 string Squier that I had converted to a six string with a Wammi bar. My Nordstrands' tech informed me that he didn't quite like the quality of Squier, & frankly all Fender truss rods. He says 80% of all Fender products he sees have s-shaped twist that limits the action height. Of course Fender fans wrote in & called him a charlatan & told me not to trust him. Well now the Squier is back on his bench for a fret dressing. And now at 3am I just noticed his email telling me that my truss rod is "maxed" because of the extra string. This obviously concerns me. At one point this was to be a dream bass. Its really a freaking dog. I have an option I am not too enthusiastic about. -Turn it back into a 5 string. At least it will lend it self to "slap" technique with the 19mm spacing. -Take off the Wammi bar (sell it?) & take off the good pickups, put the old ceramic ones back turn it into a high action 'practice only' bass. - that leaves me with out a good 6 string bass that has single coil pickups. I originally put those Carvins in my 6 string Ibanez cavities. It didn't growl like a Jazz bass at all. Later I found out those damn Ibby active preamps veil the sound. So I put the Soap bar pickups back & use it with TI Jazz Rounds. I never planned that one. My band mates like those strings a lot. Most musicians do! I don't know why. I have mixed feelings. The TIs have to be EQed to death to sound natural. -theoretically the Ibby can be turned into my dream 6 string jazz bass. The TIs would have to come off. No where to put them. A Gerald Veasly bass with a 14mm spacing seems ideal for those strings, but too expensive. Is replacing the old Squier DJAV truss rod with a better one impossible?