calling all Fuchs owners here : i am very happy with this amp when i play my humbucker-equipped guitars, they all sound great, clean and overdriven. HOWEVER, my Suhr (with Area 58/61 DiMarzio's) and my Warmoth Tele (Virtual Vintage, DiMarzio) definitely lack top end sparkle when used with the controls set identically ... i'm at a loss. both guitars sound like they are supposed to (more or less, you know, Fender-ish) when played through different amps but not so through this Fuchs ... i have 2 seperate cabs, one containing an EV "Force" 12", the other the Eminence REd White&Blue that came with the amp. i have the amp since may last year, no tubes swapped yet. what gives ?????