The Coefficient of Friction describes the ratio of the force of friction between two bodies and the force pressing them together. The coefficient of friction depends on the materials used. For example, ice on steel has a low coefficient of friction, while rubber on pavement has a high coefficient of friction. Coefficients of friction range from near zero to greater than one.
Material against bow grip Coefficient of Friction
Skin 0.90 - pretty sticky hands
Rubber 0.55 - hunting gloves with dots
Cotton 0.45 - standard hunting gloves
Slick Shot 0.07 - nice and slicky
The less friction between the shooter and bow, the less likely torqueing will occur. If you aren't shooting with a Slick Shot, you haven't minimized torque.