Great to hear of the improvements you are experiencing.
Have you watched the episodes that hit on aspects of standing?
Are you doing exercises to strengthen your feet?
Have you watched the 3 part series on rebuilding your feet?
Transitioning to a lower profile shoe can take time. A lower profile shoe demands alot more out of your ankle and heel cord rom. Some will demand on what you are currently wearing.
Are you addressing ankle and heel cord rom?