I'd look for some deeper water right now. The pump station area is only 3' deep, seems to be a good early and late ice spot, but middle of the season, like now, not a lot of action.
I've been doing well all year on small spoons and horizontal jigs, both tipped with waxworm. I'm not big into changing colors, but I do change jig sizes or profile if in not getting any bites. If you don't want to mess with live bait, it's hard to beat a Ratso, Shrimpo, or a northland bloodworm plastic jig.
I wouldn't feel too bad about getting skunked, I've heard it's been slow in the Clinton and Sabula area for the past few days.