My wife and I were up at wigwam from the 18-23 and fishing was ok. We ate fish up there two nights in a row and came home with our limits also. Down size is the key smallest flyer,tingler,slender and chubby darter you can find in glow red, gold, and somtimes perch color worked too. Best luck for us was over by Morris gap in 23-24′ of water. Biggest sauger was 16″ biggest eye” was 22 1/4″. Get away from the groups and you should do fine.
P.s. The ice up there froze into jagged ruff messed up stuff this year a lot of the good in shore spots were hard to get to. You would drill a hole up to the gear box and chunks of slush ice chunks came up you hole all day. But fishing was also good there to. Marked lots of bait fish just under the ice also