Pepperoni/snack sticks help!

Trying to make some snack sticks using synthetic casing and they don’t really have a “snap” them anyone know what I’m doing wrong? It’s like the casing is kinda falling off

Trying to make some snack sticks using synthetic casing and they don’t really have a “snap” them anyone know what I’m doing wrong? It’s like the casing is kinda falling off