To each his own. If you have an Alembic built (by far the most costly way to come by an Alembic), you can get virtually any scale, radius, board width, neck thickness you ask for. This applies to all Alembic models. That could be why the Series 1 necks you played felt different. The other difference is that the standard high end Alembic basses come standard with a neck that doesn't taper much from nut to heel. The newer and lower cost models come standard with pretty much the same taper as a Jazz bass.![]()
You are saying that the epic and essence and orion have the same profile as a jazz? Or is taper different? (just verifying lingo, not what I remember at all, but it could be different)
Edit: now that you say that, I had a fender jazz am deluxe V, and I fel that neck was a little chunky, and I do remember them being kinda similar. Maybe what I am thinking about.