Also I can't help noticing in the video his measures look a little on the heavy handed side.
Ain't that the truth ;D
Looking at all those up for this, we've all been trying to replicate BIR for a while and will have adapted our techniques over time. My first question is are we going to throw it all in the pan and see what comes out just as Dip does or are we to use our normal methods but stick to the "quantities" in his recipe?
Another thing, it may be an idea to agree the measurements of the ingredients before we all start cooking, as per Fried's comment. At least that way there will be some continuity in doing this whilst turning a very blind eye to the base used

And is lamb a must, or are we up for chicken, as lamb will influence the taste of the finished dish more so than chicken in my opinion?