My oven(s) let me down big style I'm afraid. I simply have no way to char. In any case, I can see the strong potential of this recipe. It certainly beats tandoori masala on its own. Given all the extra additions, I was surprised how strong the tandoori masala flavour came through. Salt & chilli levels were good. If I'll change one thing, it will be to reduce the quantity of lemon juice. That said, the juice I use must be strong, as I've suffered with other recipes also. I know what I use is much stronger than freshly squeezed lemon juice, so the reduction is personal to my ingredients.
I will never again use a Pataks paste. As soon as I taste that twang it spells "homemade rubbish" for me. Only once in my life, about 10 years ago, have I ever tasted that twang in a restaurant and I still talk about how shocked I was. I know there are restaurants that do use Pataks, particularly Kashmiri Masala Paste (which I've never bought myself, so can't comment on), but I've certainly never tasted the Pataks twang in a Bradford BIR, and would never return to a restaurant where I do. I'm quite sure the addition of the Patak's paste would have rendered this recipe awful for my taste, and my substitution and the result I achieved proved great for me, bringing me forward. I think you can probably tell I don't really worry about the omission.