Me too. I have a Evernew 600ml Pot (ECA421) that I thought would be wide enough (4.88" wide, 2.05" tall). I've tried two boils with a similar 2 row x 16 hole stove. I used 20 ml, wanting that to be enough, with 400 ml of water. Each time it ran 6 minutes and peaked out at ~170 degrees F.
I have noticed that I have some tall yellow flames, running pure ethanol. I wonder if a different hole pattern would fix that. I don't know whether I should have more, or less though.
In the meantime ... makes me think my Caldera Cone was a good investment. It's heavier, with the caddies etc., but does 2 cups very reliably with about 18 ml ethanol.