How do you find it burns? I found that the few things I tried like that tended to burn yellow, which I believe means there's not enough oxygen. I'm pretty sure that means you use too much fuel.
I tried everything, however, drilling holes left right and centre, and it still seemed to burn yellow, so I could have been making a basic mistake somewhere along the line (though, what, I'm not sure).
Yous looks really neat, though, and I'd be interested to know if it works with wood, also, as I'm always looking for something that will let me use a Trangia and also burn wood for if I run out of fuel (and not soften an alu windsheild).
Of course, I suppose I could either buy a Trangia Triangle, but £20 for three bits of metal seems a bit steep to me.
Maybe i should just try and knock one up.