My first Birdsong was the Fusion prototype - at the time, I was playing sitting on barstools a lot. I prefer front-jacked basses because I can rest the bass on my left leg instead of my right without hitting the cable. 3 of my 4 (and soon to be 5 of my 6) basses are fusion-body. I've always found them comfortable to play seated, on either leg. The last bass (Richard the Test Bass - the old Birdsong R&D bass) is a Corto-body, but and while I don't find it nearly as comfortable as the Fusions, I don't have any real problems either.
