I never knew anyone ate suckers!
They are fine if you don't mind pickin through the bones...
The key to suckers is early spring. My Dad loved them and preferred them to trout.
Haven't fished for them for years My friend lived right where Fishing Creek dumped into the Susquehanna. We would go down there in early spring, build a fire on the bank and fish for them in the evening and early night. We gave them to some guy who lived up the street from him and carp also. This guy made fish cakes out of everything Don't laugh we tried them and they were good.