Kilter, Moon, Grasshopper, and More: Interactive Climbing Training Boards Explained | GearJunkie
Bolt on Climbing Holds, Symmetrical Fuerte Jugs - Etsy
Tension Board versus the MoonBoard - Gripped Magazine
Having a symmetrical systems wall makes it possible to train weaknesses on both sides evenly. One of my favorite systems workouts is holding lock-offs while climbing up a crimp ladder. Hold for