Most people have a difficult time while using baitcasters because they often do not "set" their center magnets properly. By doing so, backlashes become non existant. Each time a different lure size is attached, the angler should adjust the magnet controls to allow for fluent casting. Reel the lure to the rod tip, then slowly release the magnet until your bait drops slowly and smoothly for a distance of 18".
You don't need to set the magnetic or centrifugal braking system each time you change lures. That is what the casting control knob is for. It usually sets under the reeling handle. Adjust the tension with this knob so your lure drops slowly and you are good to go. You set the braking system so it works for you and then the casting control knob for the weight of the lure you are using. A little practice and you will get the hang of it and the spinning reel will be used for only the lighted lures.ClearCreek
The magnetic brake on my bass pro reel is the 1-10 numbered dial on the right hand side of the reel. Inside the case of the reel is the centrifugal braking system that you can adjust to your liking, but is not feasible to do for every lure change. On the left hand side of my reel is the knurled casting control knob that is used to mechanically tighten down on the spindle of the spool, that is what you use to adjust the free spool depending on lure weight. To be clear, mine is a left hand retrieve model, so the magnetic adjustment and control knob would be on opposite sides of what i described on the right hand retrieve models.
Dispy - what he said!