I have tried several Balti recipes, and some traditional Pakistani recipes from friends at work, as well as a good number of traditional Indian curry recipes. However, what I'm looking to make is the perfect BIR style curry and with the recipes on this site I can reproduce all but the finest BIR's curries that I have eaten, and with continued practice and experience I get closer and closer.
I have given the recipes on this site to two friends recently who have followed them to the mark (I gave them CA's base and main recipes as I feel that these are excellent but most importantly beginner proof due to their level of detail). One friend called me and said "Mate, that made my local takeaway taste like a microwave meal" and the other said she made a great curry - as good or better than her local BIR, but knew what was in it, which she finds very important being very health conscious. Her husband also thought it was delicious. I recommended rice bran oil to her given the positive threads about this here (having not tried it myself). She said it was tasteless, odourless and she was happy to use the seemingly large volume of oil our recipes require, without feeling so guilty, given its health benefits.
I realise that I'm wandering off the topic of this thread, but to get back on the subject, there are a wide array of traditional Indian cookery books on the market, specifying recipes for curries, many of which will be lovely, but just not what you're looking for if you want to reproduce your local takeaway or restaurant's efforts. If you are looking to reproduce BIR style curries, I think this is certainly a worthwhile part of the experience, however not worth spending the money on the book - that's what CR0's online resources are for!
Thanks and apologies for going on a bit!
BB.