 It gets tough. There's some things that are better on each stove. So your multi-fuel stoves, they burn a little bit better at higher altitudes and in colder weather. So if you're summoning a peak or something like that, you're above 10,000, maybe consider a stove like that. They're a little bit more bulky, but they definitely work better at those higher elevations in the colder weather. I've used one here and there. I like them. They're a little bit more technical.