Hangboards are not magic. They are controlled edge environments that isolate finger force production. Used correctly, they are one of the most precise strength instruments in climbing. Used poorly, they are repetitive stress machines.
Some tools increase force output. Others increase tissue tolerance. Confusing neural adaptations with structural adaptations leads to mistimed programming and injury risk. Not all strength tools stress the same system.
Isolating a weak link can accelerate progress — or reduce transfer to climbing. Integrated tools build coordination but blur overload. Every training tool sits somewhere between isolation and integration. Understanding that spectrum is the key to using equipment intelligently.
Training tools do not make you stronger. Stress does. A hangboard, a gripper, or a pronation device only matters if it creates the right mechanical stimulus at the right intensity, for the right duration. Without that, tools are just objects.