To me it would seem that shuffling would be most effective in places that experience frequent natural shuffling (like when the dam releases) and where the fish are used to fisherman. In most places if a fish saw you they would leave or have tight mouth, unless it is something that they are used to dealing with, like the loads of fisherman at Taney or Bennett. Of course I have never done this or seen people doing this so I am not really familiar with the technique. Do you really think shuffling will work at other locations like Crane Creek? If it does then it could become a problem, if it doesn't then I see nothing to worry about at those locations.