AMRAP 12: 10 Dumbbell Thrusters (50/35 lb) 15 Box Jump Overs (24/20 in) 20 Double-Unders ---SCALED--- AMRAP 12: 10 Dumbbell Thrusters (35/25 lb) 15 Step-Ups with Knee Drive (20/20 in) 40 Single-Unders