I haven't used a whole lot of cream in tubes, but with two of them I've used, they have cracked or split on me, causing minor but annoying leaks/mess. I have seen online shops that sell metal pins that you can use to roll the tube down with, so I'm assuming most metal tubes are meant to be able to roll, and tightly at that. Did I just have a little bad luck? Or am I doing something wrong? I figured I should try to roll the tubes up the way one does with toothpaste. Don't think I was being too aggressive with them, so not sure what the issue was. Any advice?