Zac,

I tie my most of my ep minnows to have a flat profile like a shad or a bluegill. I use super glue on the back of the eyes and then squeeze them together on the fly either at the hook shank or slightly above. this helps to flatten out the head of the fly and give it the wide flat profile I want. I haven't had but a couple eyes come off, even on the tiny ones that I use for crappies that may catch 100 or more fish in the course of the day.