This method is a little bit different than what I use, this one folds the corner in before rolling down the bag, What I do, even in my chips bag, I roll it down, then fold the corners in, then roll it out once over the folded corners. Maybe that would be easier for you to do to this kind of bags?
This method is a little bit different than what I use, this one folds the corner in before rolling down the bag, What I do, even in my chips bag, I roll it down, then fold the corners in, then roll it out once over the folded corners. Maybe that would be easier for you to do to this kind of bags?