Hi CH,
The hottest burner on that cooker is only about 3.25 Kw and that is the wok ring. It's a case of more show than go I think!
Sous vide chicken tikka on the go now, I'll post up the results and photos soon. The theory for the chicken is that at 60 degrees it cooks through and turns white but is no way overcooked. Then I'll skewer the chicken and finish off for 5-10 minutes in a very hot oven. This should be very juicy but it won't be ready to skewer until about 10 pm tonight.
Cheers,
Paul