Night & Day effectiveness
The hold material effectiveness order would be: Normal poly plastic - Fiberglass - Wood (for gym use only).
Think of the implications, an athlete last in heat, staring down the greasiest crux slab foot chip in existence, or a local enthusiast session-ing a route the last week before a reset. No longer will these moments be as challenging to navigate.
It will not nor should it replace your traditional brush, instead it serves as a more effective solution for a common pain point.