I just tested a Frabill Polar Ice and a Frabill Blackhawk. I set the tipup and raise it to about eye height, then grasp the braid and gently pull down and counterclockwise a little, and the spool stays stationary while the line guide goes around and around the spool without tripping the flag. If the baitfish swam to the side, he's stopped and the line doesn't unwind. Don't know if I explained this coherently or not...