When I put new line on my spools, I run the line through two holes of a button then I tie on a barrel swivel and leader. When I sound the bottom, I just move the button to where I want to fish. I then set the tip up. I check my traps every half hour to hour and if I see that the line has moved, I just wind it back up to the button. I have never had more than 6" of line at any given time come off the spool.