Hi
Well, I for one, can reiterate, that I have never produced a base like this one. Not even close.
I just made a generic curry with the portion I was given because I was trying to be minimal on the additional spices and to try and let the qualities of this base be easier to identify.
The curry it produced was absolutely superb. Now, I am very hesitant to say it was just like the real thing, and it had all the qualities and the taste, lets just leave it as, it was excellent for now. Although, I could not be bothered to wash up that night, and the following morning the smell in the kitchen from the pan and plates was absolutely beautiful. (Although it was actually cooked outside on a high heat).
However, there is a key difference here, this base has (and this is where we fall into difficulties trying to describe taste with words) body, mid-tones, depth.
Thickness, watery-ness, the viscosity of the base aside, the flavor has a good warm depth to it. Like a good bottle of red, of the sound of a Gibson Les Paul compared to a Fender Strat, some bases just come out 'thin' in taste, this one was very full bodied.
Admin's base is the only one I have tried that has produced a smooth deep bodied flavor that is slightly like this one (
http://www.curry-recipes.co.uk/curry/index.php?topic=1894.0) although the coloring was a million miles away - going to make that one again now I have reminded myself

Also, interesting to read in jb's thread about his chef saying they used to add a whole Chicken into their base. Well, as I said in the first post, the base reminded me of spiced Chicken and sweetcorn soup....
Who knows.