Cross-loading happens when a carabiner is stressed on its minor axis. Carabiners are strongest when stressed on their major axis, directly in line, vertically, along the spine. When a carabiner is stressed on its minor axis it’s generally one third as strong. The second difficulty happens when the carabiner “turns” on the rack or into the quick draw and became very complicate to clip or unclip the connector. The new Grivel Captive solves all of these problems!