This may be of interest to ian, if no one else, but over the weekend I made chicken fajitas using Wahaca garlic and chipotle marinade in place of the usual Discovery/Santa Maria spice mix, which a) is no longer stocked in Tesco, and b) disappointing since the New! Improved! Recipe! was introduced.
It's pretty good. I was expecting it to lack punch, given that it only has a 2 out of 3 chilli rating on the packaging, but it was surprisingly piquant. We also tried the Wahaca smoky chipotle salsa and tomatillo salsa, which were also good.
We tried the New! Improved! Recipe! Discovery/Santa Maria fajita spice mix a couple of weeks ago. I don't know what they have done to it but it is now hardly any better than Old El Paso, with a sweet, synthetic flavour. Shame.