i use the long plastic polars with the medal shank, but try and find the large spool. The little spools do not hold enough line. If you are worried about covering the hole for light kick a little slush in the hole.... if the freezin is your concern I cut a foam/rubber mat in 12in circles, run the shank of my tip up through the middle of it and the foam/rubber mat covers my 8-10 inch hole and slows freezin big time