6.1 Do three singles on 90% of the heaviest single from 5.3.
6.2 Do three doubles on 80% of the heaviest single from 5.3.
6.3 Do three triples on 70% of the heaviest single from 5.3.

When you do the doubles and triples you first do all the cleans as touch and go and then, after the last clean, all the jerks. You have to stand still in the split for three seconds on every single split jerk. If you lose your balance the WHOLE SET is no-repped.
Losing balance is as soon as you have to move a foot to adjust your position or regain balance; or by falling back after the three seconds are over instead of putting your feet together in controlled fashion.
You are, of course, allowed to fight for balance in the split – and you should!