Cycler;
First off, don't get so "ORGANIZED", dagbabit, ya' give the REST of us a bad name!
"Tying everything imaginable and fishing in a random, no sense, order is what makes fly tying and fishing so much fun at times and especially in early season! Geesh, NEXT, you're going to be wearing a plaid sport coat and TIE with your waders! Cut it out!
Now, obviously, with you being in IA and myself, in Oregon our spiny ray fishes probably don't PM or email one another, very much, so they act, respond and spawn, in slightly different ways and times. I find the Crappies and Bass fairly aggressive in their "pre-spawn mode" about mid March, then, super aggressive, willing to hit almost anything, during their late March and early April spawn time.
Anyhoooooo........ here's 3 flies that I've tied for "early" Craps and Bass for the past several years...fishing in my own region.
The first two are not at all, "large" by most standards. They're both tied on Mustad #94840s, #12. The white fly is tied on a #38941 Mustad, #12
Whether they'd work for you, in your area, I truly cannot say!?!
Just a few, ideas, since ya' asked!
Saint Paul-"The Highly Confused"
You cannot do a kindness too soon, for you never know how soon it will be too late.
-- Ralph Waldo Emerson