Hi, I am attempting snack sticks for the second time. The first time, I think i let the temps get out of control and they seemed to "fat out" and the collagen casings separated. For my second attempt (which are in the smoker as I type), i just tested the temps and the outsides seems greasy. I am using venison cut with beef fat at about an 80/20 ratio. I have them in collagen casings. I'm using a masterbuilt electric (which i hate but that's a story for a different day) and the temp is currently set at 140 (started at 110 for an hour then bumped to 120 for two hours with "smoke" and now at 140). I have a probe in the sticks that shows its at 125 internal temp. I would think that's too low to render the fats out but yet, the sticks feel greasy, are plump and not shriveling. Is this normal?