I googled the step by step on how to make a cat can stove, which looks simple enough, as I am interested in going as light as possible on as many thing in my gear as I can, in order to allow more creature comforts and achieve a much lighter pack weight. I have the MSR stove which is tiny and light and easy, so is the weight difference between that and the cat can stove worth even doing? I started at a 42 pound pack weight. Not base, that's loaded with food and water and everything except what I was wearing on my body and my keys and wallet. That said, there are tons of ways to make big weight changes and I am going to do many of them immediately, but if I can make something that will make a real difference in my pack weight on something that isn't really a big comfort item to me, then I will. Who knows what the weight difference is in these 2 stoves or is it all very subjective?