Jerry i use 5 tsps of dd spice mix for my base. 1 tsp chilly powder, inch cube of ginger, 3 tbs garlic ginger paste. 2 - 3 tbs salt, and 1 tbs tumeric. recently i have made 2 poor bases. i reached the perfect base (without knowing it) about 2 months ago. I think endless base optimizing is problematic, because the recipies you test each week, are being tried against a moving target (the base). i now intend to stick with my decent base, i was making 2 months ago, and tweak the recipies, and not the base. Would be interested to hear your thoughts on this. I am not sure garam masalla is right for the base, as its best added towards the end of cooking the main dish. I couldnt notice any garam maslla in the real bir base i tried. I do know they add some dd spice mix to their base + extra tumeric. Why dont you ask your local TA how they would spice their base? DD