My old Hank Roberts stove used canisters that are much lighter than the contemporary canisters. They were filled with straight butane though. When going through my gear recently I found the stove with two canisters, one apparently full and one partially used. I am tempted to use it for a one or two night adventure, but after so many years I wonder if the canisters and the seal is still good.
I wonder if there is a modern version of something like this that uses a lower weight canister.