We stayed at Harmony beach and the guys there were great. The lakes had turned over and he said that the fish on Kabe relate mostly to the deeper water adjacent to shallow bays. The richly oxygenated water of the weedy shallows moves deep and take all the baitfish with it. I have always found fish deep on sharp breaks in the fall after the lakes turned over, but never focused on areas near shallow bays.
We caught several large eyes and keeper sauger between two islands called little and big something. Sorry I dont remember the names right now, but the larger island is one of the biggest on the lake and visible from Harmony Beach. If you are staying at a resort on the south end of the lake, it is visible from shore.
Besides that, most came just south east of the Ash River on the major inlet 1 mile or so down the shore on the same side that the Ash comes in.
As far as trolling at night, there isnt much for weedlines, I will be interested to hear what you find. It isnt something we tried.
Good luck