I'm late! but I must say,
anyone who hasn't tried filling a small emptied toothpaste tube from a big full one should try it.
My small one is a bit plasticy (travel size aquafresh) and my big one metalllic (tom's), I think, extending the inherent difference in feeling between empty and full tubes, but maybe that because they're what I trained on. it's a bit like blowing gum bubbles in a way