Thank you, George. There's some very useful information there. Yes, you are correct that my geographical location and lack of ever experiencing the real thing, does limit my understanding of what I'm striving to achieve. This has never deterred me from attempting to emulate BIR from afar. I still know when I've cracked a good curry though. Once again, I can only assume that if I'm following the same instructions, using the same ingredients, as you guys are, I must be achieving the same dishes in the end.
This is where it is useful for chaps, such as yourself, to prepare and sample the new recipes, provide feedback as to how good or bad they are in relation to dishes you've actually eaten and use as benchmarks.