Not up and running about yet BAJ. Stick to get about and pain meds to get some sleep.
Vinotinto, I made no notes about the tandoori lamb loin chops so I would say with 100 % certainty that I simply used Chewy's marinade process and ingredients. I can see no reason I would have used anything other, having found this to be reliably my favourite.
Here is a link to his 2012 version
http://www.curry-recipes.co.uk/curry/index.php?topic=8714.0. The one I have written down is slightly different but I can't find a link to this version. I doubt it would make much difference, however;
The differences are only in the second marinade.
1) 6 TBSP yogurt instead of 4.
2) No G&G paste in the second marinade.
3) 1 tsp Mixed powder (or substitute) instead of coriander,cumin and GM. I sometimes use Kitchen King or other Curry Masala but really not that critical.
4) Kebab Paste not included but Extra Tandoori Paste (2 TBSP) and Kashmiri Paste ( 1 tsp). I have also at times used Tandoori Masala powder and Basaar (Kashmiri) to equally good effect as Patak's pastes in catering size are not readily available. I have used pastes but not Patak's brand. Equally as good no matter the variation really.
I don't think the minor tweaking of one or 2 ingredients listed will have any significant detrimental affect on the finished dish. I certainly haven't found this to be the case.