Axe,
i think the heat is right (gut feeling what my local TA use). what it would mean though is that the base is not as thin as it should be. going to be quite interesting as i intend to try out a few of the ideas when i next have base - salted, splash of water to coat, leave to sit, my std cut & use.
gut feeling is that my local TA generally cook in 5 mins. the majority of maliks dishes using onion are cooked in 3 to 4 mins with only a few at 6 mins and these appear to be when they've forgotten about them.