I know this is a little off course but i run my offshore walleye boards in the spring for the Browns. I love them and honestly feel like i catch more fish using them over my big boards. dont know if they give alittle differnt action or if it just luck, but they def work better. I have caught Browns, Bows,Coho, and Kings pullin that way with no problems. I now even pull my 10 colors all summer that way and love it. They are alot easier to deploy and to switch lures. Yes the weight of the board is there wile fighting the fish untill you remove it, but there are a few differnt ways to rig the board so they will free slide on your line if you choose. Again I know you are more thinking of Copper but dont rule the smaller boards out for browns and cores either!
Matt
-Jakey Baby-