While at GC today, I had the opportunity to play a very nice G&L fretless fiver. I had no previous experience with a fretless. I thought it sounded wonderful, with a nice growl, particularly when colored with a touch of overdrive. I know of one player using a fretless for technical death metal (Dominic LaPointe)... Well, two actually. His successor in his old band is required to use the same. I can't help but think that the wonderful growl and amazing sustain might serve me well in my sludge band. (Drop B, but I transpose in B standard). Am I crazy? Is this sacrilege? Will the ghost of Jaco rise to exact a bloody revenge???