DoubleMIDI, unless I'm misunderstanding you, Jazz version (I own it, so can confirm) has no adjustable sound post; in fact it's got no sound posts at all. You can only adjustable the bridge position just like on acoustic DB, and adjust action by tilting the fingerboard with a set screw. The resonating board rests on two points: the top near the pegbox and the bottom where he tail piece is, but it's permanently glued in place and cannot be adjusted in any way. There's nothing in the middle between it and the solid body (where a "sound post" would be if designer would choose to install it (under resonator board where the bridge sits.