I don't think there is a good solution - unless you can stand up to cast in your pontoon boat. Seems to me the problem is that the floor (the mesh apron) is too close to your hands while casting for the line to "untangle" as it is being shot on a cast. When I stand in my boat with the line piles on the floor, that 4 1/2' of vertical distance seems to make all the difference, and tangles are infrequent.

Sg