This is an honest question. Where does the problem come in using a grinder/stuffer combo? I have a cabela's model grinder/stuffer, never caused me any problems. Now I haven't done a lot of stuffing either. Also, I have some help, I feed the grinder/stuffer, the wife holds the casings, and one of the kids turns it on and off as needed. Is that were the issues come in? Just curious.
Get yourself one of these and it will make your life a lot easier. I have been using my grinder/stuffer for over 30 years without problems.
I haven't tried making snack sticks, but for the 32-34 mm casings, it works just fine. In all fairness, I do use the #32 LEM "Big Bite" grinder
which is a real workhorse. Prior to this, I had another #32 that we would grind several elk and deer each season with.