The ART course is equivalent to the Adv Nitrox course with the addition of He. It is truly and either/or situation. IMHO, there is no need for the Adv Nitrox course if the student is destined to dive with He. The ART course has a minimum of dive time that is ALWAYS surpassed due to the actual amount of time needed with the student, especially if they are new to Doubles or Rebreather. The ART course is to full Trimix what cavern (from a good instructor) is to cave diving. If you master the skills and knowledge in ART, then the rest of the trimix course academics are just variations of the math and practice of the skills.
I teach quite a few ART in place of Adv Nitrox. Same course materials and time in the water for either. Why not learn about the use of He, even if you don't use it often after the class. -Eric IANTD Trimix and Rebreather inst #8628
I teach quite a few ART in place of Adv Nitrox. Same course materials and time in the water for either. Why not learn about the use of He, even if you don't use it often after the class. -Eric IANTD Trimix and Rebreather inst #8628