Four discs means more total drag surface area, more heat dissipation during sustained pressure, and a smoother, more consistent drag output across the full lever range
We switch between both regularly depending on the session
The first blank extends off the handle of the rod, it has the largest diameter
Use a pop-and-pause retrieve to simulate an injured baitfish struggling on the surface
The brake technology of Shimano is impressive with they call VBS, which is a centrifugal style that uses weights to create drag on the spool
Murky, turbid, or deep water are primary among these, and in those times dead or artificial bait that puts off a lot of scent can be very useful