Given my boat configuration, I run two planers off each side and one flatline "tailgunner" straight back, no planer. The downside of the flatline is that the rod tip is probably 6 feet above the water, so there's no way to accurately calculate lure dive depth, and the line sometimes swings out wide on tighter turns and tangles with a another line if I'm running the planers in tight. It seems to me that a stern planer would solve both problems. Agree? Does anyone here use them? Any downside? Thanks!