Stop in at Grand River Outdoors...they are right by the dam in Dunville. Grab some cutbait from them and get some intel. If you fishing from a boat, the boat launch is also right there
I found some awesome brush piles doing this last fall, took about half an hour to find them all in an area of about 6 acres with SI set 90’ either side. Circled back and picked them off with FFS in down mode.