I probably fish the same waters you do as I am from northern IL and fish S.E Wisc lakes exclusively. I can tell you this I used to be a die hard crankbait guy until I fished with a friend I met and he changed my whole perspective on jig fishing. Once I learned to jig fish, I caught more fish and bigger fish. I can tell you this, that not every day is a jig bite day. As I am a very confident jig fisherman, there are some days that I struggle with a jig. At that time need to change tactics. Also I will tell you this, that all the lakes I fish, I use a 1/8, 3/16 and 1/4 oz jig max, 1/8 oz being the preferred daily jig. With a trailer it ends up weighing about 3/8 oz give or take. I never fish any heavier jig unless it's 20 feet plus. Also with the lighter jig, the falling action is much different than using a 3/8 or 1/2 oz jig. What I suggest is going into the Fall season, you will get less bites with a jig, but the fish will be bigger. I would also wait till Spring next year and go out on these lakes with only jigs and trailers. This will force you to learn how to use a jig and see what the fish are doing. As dumb as this sounds, I learned to jig fish by feel. Cast your line, close your eyes and slowly hop and stop your jig as it sits on the bottom, waiting for a pick-up or line movement. This will help you concentrate and focus on what's going on. You will feel this thru the rod and into your hands and then into your brain on when a fish taps or picks up a jig. Once you master this you can cast and keep your eyes open as you fish. Concentrating on what's going on and focusing on your line is key. I hope this helps some. Finally, if you want to PM me about some of the lakes you fish, I would be more than happy to discuss some techniques. Good Luck.