My guess would be 1 to 1 so approximately 4oz mash to 4oz "other" ingredients. Depends on the heat level of the mash, flavor etc, and the heat level of sauce you want to make. But I am no sauce maker, someone much more knowledgeable will be here to answer your question better than I.
I'm not a Chilli nut quite yet but i'm making progress.... i wanted to ask you qualified 'nuts' something though....
I have been looking at Jamaican Hot Chocolate seeds from a few places and have noticed that some call it a JHC habanero and others just JHC, so i'm wondering why that is, as i've also seen some say that JHC is not a habanero.
I know i'm on my way to becoming a Capsicum & Tomato nut when i'm getting concerned with such little things.
Thanks for any input.
Great question deserving of it's own thread. You'll have your answer in no time by people a lot smarter about such things than me.