If you are currently struggling to complete 25 meters, then you should begin with the Ultra-Efficient Freestyle Self-Coaching Course. The Freestyle Mastery course is designed for those who have 6 months or more self-coaching experience with TI and whose foundation skills are well developed.
The UEF course teaches those foundation skills.
You can download a free excerpt from the Ultra Efficient Freestyle ebook here. http://www.totalimmersion.net/store/...l#.V7zrxVdsZg0