Gri-Gri or ATC? This is the biggest question a beginner rock climber will have to answer as she purchases her starter gear. There are pros and cons on each side, but to give you the Cliff Notes, we believe that a beginner climber is best served by learning to belay on a Petzl Gri-Gri. Although … More Buying Guide: GriGri versus ATC for New Climbers