I guess over the years I've had the good fortune to play and/or own some quite superb fretless basses. Some have sounded amazing; some felt like they could play themselves; some had perfect balance and some had looks to die for. Some ticked two or even three of these boxes, but only one ticked all four, and that was a 6-string RMI Hummingbird. The one I played actually had two of those Delano Xtender pickups and the piezo bridge, so no ramp: