I didn't get a chance to pick up any MSR canisters today.

In terms of stability, there are little plastic canister stands out there that do help. On today's hike, I didn't bring a stand and just used one of the little narrow Snow Peak 110g canisters. I melted snow in a 1000ml Snow Peak pot. It was fine.

But I will get an MSR canister if I get a chance. You've gotten me curious.

HJ