I got the suddern urge the other night to build myself an 8-string fretless bass. Not the kind with extended range, but the doubled strings. I think some people call them a mandocello. I have a lot of questions about the 8-strings but I would like to hear some soundclips first if anyone has some (solo if possible). Also, what Pearl Jam songs does Jeff use the 8 on? I'm going to try one out at a music shop soon if I can find one, but I couldn't even find a fretless last time I looked around.