I'll make a companion post to Mo Qwuack's " proof that crappies hit big baits" thread.

That #13 Husky Jerk is a bait I like to troll on the Mississipii River during the fall months if the jig bite isn't producing. In many areas I drag this along rip-rap with fairly deep water snooping for waldo but catch some impressive crappies right along with the long fish.
The jigs shown near the penny is 1/32 and the plastic on it is only 1" in length. I fish this bait along some rip-rap and off docks for late fall crappies, but in the last four years five walleyes in the 29"to 31" range have hit it and been landed.
The big bait gets trolled fairly fast and the crappies that hit it and get caught are chasing it, so hook-ups are not incidental or accidental. These fish are shopping for large portions on their dinner plates.
On the other hand, walleyes of those proportions that hit small baits like this one are clearly not at all fussy about grabbing morsels and makes me think that they are opportunists....if its can be eaten and happens by they are more than happy to eat it.
So....what is too big and what is too small? Clearly I can't say because neither bait has been tied on in anticipation of catching the fish mentioned. At the same time, having caught these oddball fish on these baits, it erases any doubt that they will and do hit on baits larger and smaller than we expect them to. One just never knows....