Conditioning
“Flight Simulator”
For Time: Unbroken sets of Double Unders
10-20-30-40-50-60-70-60-50-40-30-20-10 reps

You MUST stop in between sets (the rope must stop).
Once you miss at one level three times in a row, work back down the ladder.

Notes: The plan was to do 10 to 100 and back down to 10, but with the heavy rope this became too difficult. Finished this effort with 100 unbroken singles. Total time was 10:49.

-Rest 5 Minutes, Then:

“Flight Simulator”
For Time: Unbroken sets of Double Unders
5-10-15-20-25-30-35-40-45-50-45-40-35-30-25-20-15-10-5 reps

You MUST stop in between sets (the rope must stop).
Once you miss at one level three times in a row, work back down the ladder.

Notes: I did this with singles using the heavy rope (HADES) -- with no misses. Total time was 8:00.