Hi there, I just bought a casting reel to try and use for the first time and am very confused, so sorry for the dumb questions. From the picture, you can see im trying to spool it up with 25 lb big game mono. I don't understand why there are 2 drag settings/mechanical brakes (one on each side...

Am thinking about getting a Catmaxx Cmx80 spinning reel with a Ugly Stick Tiger Elite spinning rod with spiderwire stealth glow-vis Braid 80lb. I have a budget and this is what I want to build it with. Any and all feedback welcome.