Going to chine in on this subject again. I have used everything but the walkers. I currently have two scottys and would like to replace the both of them. I think that the auto following on the cannons is great and don't really understand what people don't get about it. So here's the drill. You are fishing for kings, like I did all week end-caught two, and you are running a line on a drop off at 100 ft with 200 off one side and 75 of the other. The fish are between 110 and 90. So you set the low limit on the cannon to 120 and the high end to 40. now as you cross back and forth dodging ten other boats, the tide line and a bunch of floating weed matts, the down riggers will stay with in 5 ft of the bottom but not go over 120 deep or 40 feet shallow. yes you have to keep reeling up and down on the reels ( YOU HAVE TO ANYWAY) but you don't have to reel up the down riggers before they hit the bottom. And to tell the truth as long as you don't move more then 20-30 ft up or down you don't have to reel in the slack at all. So you are getting to do half the work and don't have to worry about hanging up the bottom. I fish in areas where if you are not on the bottom you are not fishing. I also like the cannons as they take up less room horizontally and that would make fitting my canvas over the down riggers easier when on anchor as I was all weekend. The best downrigger would be the walker with the built in camera.