If anyone has trouble finding the cubes drop me a pm and I can post a few out. Have the option to buy them individual here for pennies. Interesting comments. I always cook lamb (mutton) on-the-bone for curries these days and it's pretty heady stuff already, but I've been carried away with green cardo/mace lately (wonderful combo for meat). I think I'll pop a cube in again next time. My home balti lamb efforts so far are still falling short of the genuine article, particularly in terms of depth of flavour.
Re the Adil certain the balti chicken also contains a "stock" of some sort. Not generally as apparent as with the balti lamb, but my last TA from there was clearly loaded with it. Overly so. Plus, from what I've had from there previously the balti chicken often includes visible dark chicken meat. Interestedly not always. Thinking the stock(s) could be introduced via the pre-cook or/and the base gravy. Not sure if I've mentioned this before but the Adil do not use raw chicken when making balti chicken. One of the guys there told me that it is pre-cooked. Everything is pre-cooked.
Rob