I made a Jalfrezi tonight (own recipe) with the original Glasgow base and it was really nice. I altered the water content and the cooking method to suit what I'm used to though and that seemed to make all the difference. Strangely, unlike the previous two curries I made, it didn't seem oily this time.
Anyway, I suppose that as the oil content has been reduced in this version it will be even better and I would recommend giving it a go. Remember though that the precooked meat has to be used, as well, as much of the spicing comes from this.
It's a pity that bb1 has been scared off because I would have liked some more recipes. Personally I think we've lost a good resource (no thanks in particular to CA's paranoid posting!).