Monday, 17 December 2012 by The Sensei | Dec 16, 2012 | Crossfit Camp Mabry Hopping to Improve 10min Skill Work: Double Unders —– then —– 5 RFT: 20 Double Unders 10 Walking Lunges (115/75#) 10 Pull-Ups Cash Out: 50 GHD Sit-ups