A. Double under skill work
B. 10 min double under work:
All sets must be unbroken, and rope must stop between each set.
Scale to Double-unders: 2-4-6-8-10-12-14-16-18-20-18-16-14-12-10-8-6-4-2.
Also for those who are just learning double-unders work on basic technique, and do 5 singles, 1 double, 4 singles 1 double… etc.