We have used them too. My theory is that the fish face into the wind. When we would troll into the (same way the fish are facing) the bite was slack. When we put the chains out and drift back over the same are we the bite was better. When white perch fishing in choppy water I almost never catch fish with out going with the wind. I have used the chains off the back, but prefer them off the sides for more coverage and better control(for me). I put one off the front one off the back and I adjust them until I get the boat like I want it. Then all I have to do is bump the tm ever now and then to liner up. We'll try it sometime.