Pro Troller Smart Tabs Series f/12-16' Boats w/40 - 80 HPTrolling Brakes and Trim Tabs All in One! The ProTroller series incorporates the ability to turn SMART TABS into trolling brakes. By simply moving a lever up or down, ProTroller Smart Tabs switch between the most effective trim and stabilizer system on the market to the most effective trolling brakes on the market.TROLLING BRAKES:With the levers in the down position, the plates drop down to create equal braking on both sides of the boats,