Hi, yes your Jazz will sound a lot like a Sadowsky if you run through the Sad pre. Really all a Sadowsky is is a very well-made Fenderish basic platform with the Sadowsky pre built in. As long as your starting bass is a well-made basic Fenderish platform, if you add the Sad pre then there you are.
Since MM's sound is scooped and bright, and since the Sad pre does scooped and bright quite well, then yes. Of course beyond having a Jazz with a scooped bright active sound, you have to also have MM's skills.
