Neither type of supplier is perfect. Even good ones might have hiccups. The point isn't to crown a winner—it's to build a checklist.
- Documentation: Did they provide everything you asked for?
- Transparency: Did they answer questions directly?
- Process: Did their order flow match their claims?
- Responsiveness: When you flagged a concern, did they address it?
Score them on these, and you'll have a clear picture without needing a single lab test.








