Aftco roller release to a fixed loop on the planerboard line. Place dipsy in water, clip line into release, send out board free-spooling/thumbing the dipsy reel so the dipsy maintains it's position in the water. Once you are at the desired distance away from the boat...lock down the planer reel, zero the line counter on the reel and send the dipsy out to the desired distance. You just made your 8' transom 50' wide.