This might help.
Make sure you use Emerald Shinners either frozen or alive.
Use a #6 gold sharp hook.
I always insert the hook from the tail then back towards the head. Perch almost always swallow the head first so if the hook is in the head area the better.
I start with gold blade spreader and if not bitting I go to small silver blade spreader or no blades at all.
Drop to the bottom let sit for about 1 or 2 minutes then raise your rod very slowly if you feel a small tap or just a tug set the hook if you feel a fish on the other end reel up if not back down to the bottom.
Sometimes you might have to let on the bottom for a longer time.
If you do not catch anything in 30 minutes or nothing on your screen, move.
Hope this helps.
LAST CAST.