Hi, there are many base sauces on the fourum and lots worth making, what i have learned is that if you stick to the basic ingredients used in a base sauce then your on the right track.
Its more a case of how its made that is important! Coconut is used to sweeten the sauce, were as some people dont like the taste of sweetness in a madras or vindaloo.
It all depends on how your taste buds recognise a curry, imput your taste and learn well how to cook base gravy then you will do good,
Thanks.