In super cold conditions the efficiency of the Primus ExpressSpider remote canister stove can apparently be increased by inverting the gas canister. I've only see a couple of ways of doing this and nothing is commercially available so I'm interested in your ideas.
My first idea was to use the Primus Clip-on windshield that I use with my Optimus Crux top mounted stove. This has the advantage of being very easy to store as it can be clipped flush around the canister when not in use. At 60g it's not too heavy to carry but not too stable either when used in this unconventional way.
In accordance with UL principles inverting the canister should ideally be achieved by using items you're already carrying. I tried this by utilising two velcro ski straps and three titanium V-pegs. This set-up proved to be far more stable but fiddley to set up with cold fingers. The other problem is that I don't usually carry these small pegs in winter although at 36g for the three pegs (I'm already carrying the ski straps in winter so their weight isn't included) it's not a hardship to carry them.
So how do you invert your Spider?