I thought this had been discussed but searched and found no answers. I have a foodsaver brand vacuum (yes it was 3.99 at Goodwill!), it works great with foodsaver brand bags. My question about these in general (not just this brand) is has anyone found a machine that works with "smooth" poly bags of 2 or 3 mil thickness. I have found a source for 8 inch "tubes" in a roll but not sure if the smooth bags will work. Thoughts from those that may have been down this road?