I currently own a GrooveTools 7 (bolt-on) with the standard Bart electronics. I have just been offered a Bill Dickens signature 7-stringer, and I am just wondering whether the differences are big enough to justify the hazzle. Anyone have any A/B experience on these two Groove Tools? I know the electronics are more advanced and that the BD is neck-through, but how much does this affect the bass overall? I'm pretty satisfied with the GT7 and wouldn't even have considered a trade if it hadn't been presented to me. Its' not my main instrument, either, I guess. And as these instruments are really difficult to sell here in No(r)way, the extra quality would have to really make a difference to go through with it. And... the problem of selling them may put an effective stop to it anyway. But any experience/opinion welcome!