With only the information on the forum to guide me, I have read more than one post about the Inland Sea having fish that contain 2 & 3 inch alewives and more than one post referring to 4 inch plus smelt and, in one case, adult alewives coming out of fish in the Main Lake.
How many anglers have tried to "match the hatch" and what are the results? I know a major derby is coming up, but ... if size doesn't matter how can the results matter either?
Many, many years ago, before the "introduction" of alewives, among a few anglers (who refused to say) it was common knowledge that the #3 Honeybee was responsible for a large number of Derby placements. At least in your tournament pre-fishing time, you might consider leaving your comfort zone, and trying larger lures mixed in your spread and even sharing the results. I mean, does size really matter
while using a custom hand painted (Nascar) #3 Honey Bee 
Running lots of old school bees with great success