WKSF competition rule. Long Cycle (Clean & Jerk) Rules category.
STOP is triggered when: 1) Kettlebells are held 'dangling' between the legs to rest, 2) More than one oscillation in the step of passing to the dead point, 3) Kettlebells rest on the platform, 4) Kettlebell leans on the shoulder, 5) Athlete descends from the platform, 6) Kettlebell does not touch the shoulder during descent or ascent.
See the interactive comparison on KETTLEBELL MONSTER™ for filterable views and more detail.