Have to confess that electric bass (in jazz) is frequently disappointing me .... don`t think being a purist, but it is amatter of sound .... can`t say too much about Dexter in the recordings you`ve mentioned, but believe he cut great stuff in the late 60`s/early 70`s with "acoustic guys" like Buster William, Stanley Clarke, Jacky Samson or Martin Rivera ....
P.S Congrats on the smilies !!