I find that up to a point, the left hand stop required for jazz pizz playing is a bit of a different animal than is required for arco, as Damon says. A good friend and colleague who is a wonderful arco player has confirmed this in the past; without the bow to activate the string, a full stop becomes paramount.
Tips versus pads is another tonal issue involving amount of force required, and in the end I would say that the biggest difference between BG and DB left hand technique comes down to how the force tot stop the string is generated. For BG and guitar family instruments, the force is commonly generated by extending and locking out the thumb on the back of the neck and then pivoting around this with the wrist so that the thumb becomes almost like a fulcrum - at least, that was the way I usually used and taught it, and how it was presented to me in my days as a classical guitar student. For DB, on the other hand, it is not the thumb but the weight of the arm that has to be leveraged to produce a solid stop. With the amount of arm/shoulder weight/force I apply to the string, my 3rd finger simply isn't strong enough to handle the pressure until I switch the angle of the whole mechanism in thumb position. As always, YMMV.