Glossary
Grip confidence
The ordinary feeling of trusting the hand. It is not a clinical term and not a product spec.
People pull harder when they believe the bar will stay in the hand. That is experience, not a molecule. A chalk you have used before can feel more trustworthy than a new bottle. That feeling is allowed to matter in training. It is not evidence that the new bottle is worse, and it is not a statistic.
The way to earn the feeling is a few light sets with the coat fully dry, not a slogan on the label.