Buying fibre, step 12 of 12
Record what the lot did in the mill
Yield, breaks and yarn faults per origin and merchant, so the next spec is tighter than this one.
The cheapest improvement in this whole process is a record: what was promised, what arrived, what it tested, how it ran. It costs a spreadsheet row per lot, and it is the difference between negotiating from memory and negotiating from evidence.