Only the live liners have this switch basically gives you 2 drag controls, you can adjust a knob at the base of the reel for the live liner drag control and the top adjustment for your regular drag control
Is it a specific area tho I’m going to Dallas this week on Thursday and wanted to fish for awhile before heading to play in Colorado but I’m from the rgv and don’t know where tog er bait or where to go any help would be appreciated brother