I second that, since you are in Chicago, you must figure out the main baitfish in your area and replicate those baitfish the best you can. In most cases the bigger the bait, the bigger the Bass. Like WayneM said, BASS HATE BLUEGILLS/Sunfish/Kivers - what ever you call them in Chicago. Seeing your new here, welcome & use the "Search" feature on the forum to ask any question you want. Most of the info you need has been discussed in the past. Hope this helps & keep casting...
Thanks!