I agree with the method being the biggest influence. Most of the bases are pretty similar. I split Chewy's into 6 portions, each making about 3 or more curries, so say 20 curries from the base. So the 2 heaped tbs (say 8 tsp) of Chewy spice mix that is added to the base is divided into 20 curries, so about 0.4 tsp per curry. It's clearly not going to make a huge difference if I change that mix to say CA's, particuarly as I'm adding extra spice to each final curry in any case. It's pretty clear when you fil the pan; there is so much onion in comparison to everything else.