I not sure you want me to give you pointers on Wipers if you look at the success I've had this year. It is true that they key on shad and typically where you find the shad you will find wipers. It is kind of hard to quess where they will be on a given day but it is true they will chase the shad up on the shallower flats and usually in front of the bay areas. I am not sure if it's been just the type of days I've been there this year or not but I have not been there this year when they have been in this pattern. Lately I've found them suspended over the creek channel both on the slow side of the lake and on the west also. One thing I have noticed for sure is to stay after them through the day when you find them. Many times they will bite for a short period of time and then shut down. I've also had them start biting at high noon on a sunny day for an hour or so and then just quit and not get another fish all day (go figure that behavior).
I really don't mean to be so negative about my response because on the flip side when they turn on, this can be some of the most fun that can be had in fishing. The wiper is truely a good fighting fish and that is why I keep going back regardless of the previous outcome. Good luck and let us know how you do..