Two batches from the same listing can behave differently on the chair. The reason is almost always upstream — donor origin and processing run — and the only defence is a receiving routine you run every time.
1. 1. What to Compare
Lay a sample from the new batch beside a retained sample from the last accepted batch. Compare curl pattern when wet, shade under daylight, and how the fibre behaves when stretched. Texture that only matches when dry is a coating, not the fibre.
2. 2. Retain a Sample From Every Batch
Keep one bundle unopened per batch with the purchase order written on it. Without a retained reference you cannot tell a supplier that batch four differs from batch one, and they have no reason to believe you.
3. 3. Wash Before You Sell
A single shampoo strip tells you more than any photograph: how much it sheds, whether it tangles at the weft, and whether the length survives. Test before the batch reaches a client.
4. Applying This to the Current Line
The figures above only matter against a concrete specification. For this category we are working with Curly Ends Boho Locs Handmade 100% Human Hair Micro Loc Extensions Sisterlocks Style Dreadlock Extensions at 1.55~2.95 — record the same measurements for it on receipt and compare them with the batch you last accepted, rather than with the listing photograph.
5. What to Monitor
Record the outcome against the batch number in your own purchase log. Two entries that fail the same way are a supplier problem; one entry is an accident.
Batch Consistency Test Reference Set
In-stock wholesale line used as the measurement reference for batch consistency test.