Great stuff Jerry, that's 2 of us then to start with. How near to Manchester are then mate, I noticed that you mentioned Bolton market in another post!
Another thought just popped into my head, wouldn't it be great if at one of these venues, a member managed to get hold of (or purchase) some spice mix, base, and pre-cooked chicken from their favourate BIR/TA and made a side by side (like for like) dish, say Madras, using the TA ingredients and then compare it to the dish using their own ingredients.
This should answer a few of our questions, I.E, if the intensity of the flame is a factor, if cooking method makes that much difference and so on....
I've even wondered if the type of pan makes any difference. I use a carbon steel wok, which allows me to really thrash the food about but I did buy a BIR style curry pan. Unfortunately, I carried on frying as if I was using the wok! There was more curry on the hob, the walls, and the floor, than ended up on my plate. I must say, the wife was well chuffed when she saw the kitchen

Ray