The last couple Saturdays I haven’t seen anyone on the piers with anything on stringers. However, I would shade on the earlier side and start fishing for them as soon as you can. Chances are if you hear they’re crushing them it’s already too late and you have to wait until the conditions align again.
The South End provides useful resources and discussion forums for those that fish The South End of Lake Michigan for Salmon, Steelhead, Perch, and Bass as well as elsewhere in the Region and Chicago area.