Catalpa (catawba) worm from freezer

I've had terrible luck with frozen catalpa worms i.e. never catch anything (except on rare occasion on trotline)

Finally got a 2 lb channel catfish using a frozen catalpa worm (and a circle hook - something I don't use very often)
Summary: Maybe all the stories I hear about catalpa worms are great bait - may have a 'little truth' (but I still like stink bait and liver better)
P.S> heavy rain yesterday - seemed to move the catfish back to shallow water around my fishing pier - may use catalpa worm again tonight (i.e. feed the turtles :)