I don't know which one Cory uses for he's recipes but I think he is of the any good base will do camp
Well, that's sort of right CK
I do believe that any DECENT curry base will SUFFICE......
HOWEVER,.....I also firmly believe that a REALLY GOOD curry base is fundamental to a REALLY GOOD CURRY! (i.e. with regard to "the taste" and "the smell").....every bit as much as the technique used to make the curry.
I think that it is difficult to achieve a REALLY GOOD CURRY with a mediocre Curry Base. I have a freezer full of such a Curry Base now. It's "OK", and I will use it up,.......before stocking up with a Curry Base of my own concoction yet again!

Regards,