What repeated refills reveal that first impressions miss

A first refill can tell you whether the instructions make sense. Repeated refills tell you whether the port stays easy to access, whether seals remain cooperative, whether residue collects in a predictable place, and whether the routine becomes easier or more annoying over time.

That is why our long-term notes keep ordinary maintenance tasks in the test instead of treating them as setup-only details.

Repeated handling is where small design issues become obvious. A door that feels “fine” once can become the main annoyance after twenty cycles.

Agreed. I also notice whether I start changing my behavior to work around the design. That is usually a sign the workflow deserves a mention.