OK folks
I made up a new batch of this yesterday. I added more coriander powder than cumin, and I also added about 10 Indian bay leaves and 8 good sized sticks of cassia bark. (Each piece was about 4 -5 inches in length)
Didi it impove it? ............YES

It was a little heavy on the cinnamon, so next time I'll halve the quantity. i took the cinnamon and bay leaves out before adding the butter and sugar etc. Then i also added 2 tsps of home made garam masala.
We all tasted it at the shop and agreed that apart from the cinnamon being a little too heavy, it was a big improvement on an already very nice dish.
I'll let you know how the next one turns out.
