I’m new here so I may be repeating stuff.
A solo camper I use the KK Trekker (smallest) whenever I am allowed. Otherwise I use a Svea M40. (Swedish Army Trangia). When I’ve been tired or it really is raining hard I’ve used the military version of the Trangia burner (125ml) inside my Trekker. Not the best use of fuel but easy!
Yes it’s very much quicker than a simple pot, but who cares about minutes when you are camping!
No the pot that comes with it in the kit isn’t much use except to keep your mug clean when you store it inside the fire base. I also keep a tinder box inside the mug inside the pot inside the Trekker.
The leaflet says point the fire vent into the wind when you have a fire going. I am a maker of whistles and NA flutes so:
Turn the fire vent across the wind but slightly into it until the kettle “flutes”. You will get a beautifully hot vortex up the sides of the chimney.
I can’t post pictures here yet but look at my avatar pic for a view of a Trekker on song. Four minutes cold to boil tops in those conditions.
I’ve used this tool for many years and was even involved in discussions with Patrick Kelly as he was developing the Hobo stove. I still have my prototypes somewhere. It makes the KK into a very effective cooker. The chimney support is OK if you’ve planned a quick cook (Eggs or porridge etc) carefully in advance - but you’ve only got about four minutes!
Sorry, I could say so much more about running this little gem but first and foremost, like any tool, it needs just a bit of practice to use it effectively.