I recall Alembic Distillate 8-strings in the Exploiter body had a variation on the cone that has complex radii. Kind of cool, but not my cup of tea. To me, the crown is ultra-cool for 4 and 5 stringers, and the knobby for 8, 10 and 12 stringers. The peghead on the Alembird worked really well for that body style, but otherwise not really my thing either. So... Crown and Knobby for me!
John