I received a set of J-bass Bardens about eight years ago for Christmas from an old friend of Barden's. He apprently didn't make them long - eventually abandonded them in favor of the Tele pickups he's so well known for. They're side by side coils in a standard J Bass size. Lots of wiring possibilities, though the wires used are way delicate and I understand they're easy to upset if not installed just so, Personally didn't think a whole lot of them - I felt some improved output on my stack pot Jazz but I missed the old fashioned out of phase sound from the stock p'ups nd put 'em back in. The bardens are in my china cabinet at home. Anyone out there whose mileage varies?