I did banded distractions but also had to release my ankles.  my chiro/PT would do soft tissue to release muscles around the lower leg, and then yank on it to release the ankle.  for me, i found that i had to do that for a *LONG* time in addition to banded distractions before i found that ROM stuck.  even so, i still have to release the ankles since they get all jammed up somehow.