Hi Natty,
It’s important to keep the foot flexed as it’s more secure and puts less stress on the the ankle. we recommend using a theraband or stretchy tights and doing some ankle flex/ point exercises as well as internal/external to help build up ankle strength. In the air- You can also think about internally rotating the leg while placing the ankle hang with a strong flexed foot. That may also help your foot from sickling. As for question #2 could you send a new link so we could see your video? That link doesn’t seem to be working. Thanks
