I made the recipe at post #1 this evening and it certainly has some merit, but I wouldn't go anywhere near as far as using the word 'ultimate'.
My changes were to make half the quantity, starting with 500g of lean mince. I only added half an anonymous green chilli from Morrisons but, as I said, it's flavour I'm after and not heat from the chillis. This recipe is expensive though, necessitating the purchase of red wine and sour cream, unless you happen to have these things lying around, which I don't. I also added quite a lot of salt and black pepper. The recipe only mentioned 'seasoning' early on, so it was too vague, really. The substitution of my normal (cheap) beef stock cube for (expensive) red wine can't be justified in my opinion. I may borrow some aspects of this recipe when I next make my normal chilli con carne. Aspects I may 'borrow' include the high amount of garlic, roasting the cumin and the high quantity of cumin, and perhaps even the red wine, but only in addition to beef stock.