Pickups in Lakland DJ5 (Stock vs Bacchus)

I need your inputs on this...
I recently picked up a Lakland Daryl Jones DJ5 bass.
Problem is: The pickups presently in it came from a Bacchus bass (but original owner does not know what model it was from). He also gave me the stock pickups too.
It also has active electronics in it.
Is anyone familiar with Bacchus pickups? What would sound better in the DJ5...the original stock pickups, or the Bacchus?
I really would rather not go thru the long hassle of swapping pups to compare for fear I may have liked the Bacchus better. Any ideas or experience with Bacchus pickups out there?
I am also not so crazy about the active electronics in it...they sound way too thin and whenever I move the (stacked) treble or bass, it gets "buzzy"....kind of like the single coil buzz you typically hear. I think the actives make the bass much more trebly at any position other than neutral for bass/treble stack pot.

 

I cannot find a serial number anywhere on the bass...I checked the back of headstock, neck, and topside of headstock. Do they all have a s/n somewhere? Where would it be?