Hello, I've been following this fine thread for a couple of years now, not intervening because what I found here was more than enough for me to understand what works and how to build me some stoves (I have currently built a number of CHSu-s and eFREVO-s). But now it's time to intervene and ask you guys: did you try these alcohol stoves at higher altitudes / in lower climates? I'm asking because recently I decided to try out some of my stoves (which work perfectly in low terrain, back home) in re…