What do YOU know about cold weather according to your location (Saudi Arabia)?
they do work very well in the cold , the trick is and the military will tell you this as well is to keep your meths warm in your inside pockets inc the burner.
I was always told that the groove around the rim of the burner was there to hold the "priming" meths....Trangia make a little pre heater thingy but you can make your own with something like a shoe polish tin, put a few drops of meths in and light under the burner to give a little boost, alternatively you can drip a bit of meths around the rim of the burner.
I was always told that the groove around the rim of the burner was there to hold the "priming" meths....