Getting good separation, definitely you must be in good balance with mobile stance.

JF's Maintain Separation Progression

1. Both leg diagonal side slip - belly button face to outside ski tip
2. One leg diagonal side slip - both ski tips on top each other
3. Still one leg. Add steering outside ski little bit - both ski tips on top each other
4. Still one leg. Link turns - both ski tips on top each other
5. Same as No. 4 with little bit stronger steering and variation rhythm
6. Jump outside ski to out side ski - both ski tips on top each other
7. Back to normal ski - If you have a strong alignment and are able to edge earlier, you can ski more dynamic