The tamerind concentrate paste gives a huge amount of extra richness to the curry taste, also having a savoury slightly sour, almost licourice taste. If over used it dominates the whole taste of the curry, and ruins it. It is not like any other ingredient. I use only about half or at most 1 teaspoon of conentrated tamerind in my madras (4 people serving size). It works well with curries based around tomatoe , fresh green chillies, peppercorns, lots of onion, mushrooms, tomatoe puree, coriander, brown sugar. Tamerind ruins kormas and dansaks which should be sweet and light. There is a pataks tandorri or vindallo paste jar which is labelled as high in tamerind. I am now going to experiment with using a tbs of this instead of pure tamerind concentrate. I hope it may taste a lot better, as pataks are good in small quantities. I will post my results here in the next week or so. Hope this is of use curry kings and queens!