I fish Farm Island a lot. Good walleye lake, with most of my success coming off mid-lake weed edges. Wind is important, and fish the windy side. I have on occasion found walleyes suspended over deep water at the depth the weeds grow to. There are some rock humps that can be good, but day in and day out the weed line is the ticket. Wind is key, not very good in flat calm conditions. Had good success throwing a shiver minnow out into deep water near a weed bed also. Good Luck!