Garp, Did you ever try the home made pat chapman tandoori powder as suggested. I think its worth a try also.
I would guess I cook my tikka on 220c for around 10-15 mins then wrap it in a foil parcel. It seems to steam its self a little more in the foil with out drying out.
If I am going to use the chicken in a main dish then i recently have started to wash with hot water quite a lot of the sticky marinade off in a bowl. Such as a kenwood chef mixer bowl.
Is there anything you wanted for Christmas Les @ other members, and did you get it? as Garp requested "Keep it clean and, if possible, curry related"
I myself have a new curry cookbook by the hairy bikers. Has anyone used the hairy bikers curry cookbook? with out taking Garps curry related thread further off topic.