So I’m a newbie to snack sticks but have learned to not start off at a high temp.

My issue isn’t rendered fat it’s actually that the casing is slightly overdone and the inside is just greasy. As in the meat is greasy. So is it that they were just overcooked?

5 lbs straight beef
Snack sticks mix from fleet farm
Bradley smoker
Started at 120 temp increased in 10 degree intervals smoked 6 hours.