Rules for the Flight Simulator: 1. You must complete each set consecutively before moving onto the next Example: You must do 5 consecutive double unders before I can move to 10 double unders. 2. You will start over on the set you were attempting if you do not get the desired number consecutively. Example: If I am on set 25 and I trip on 23 double unders…I will start over and try for 25 again and continue this until I either get 25 consecutive double unders or the time runs out. 3. You must take a break in between sets.
Since the focus here is unbroken double unders, a scale might be 1-2-3-4-5-6-7-8-9-10-9-8-etc. double unders as an extreme example. Or 2-4-6-8-10-12-14-16-18-20-18-etc.
of double unders