Interesting option. I think I would have done the 6 week option as I was well rested and healed from surgery and then was able to keep life mainly going with the daily 5 days per week regime. At one point they thought they might have to stop for a break as my skin split, and another time I had 5 days off as machine broke so sometimes the best laid plans don't go according to plans . I felt like I had spent the day skiing during week 4-6 and was pleased I had two weeks off most of work and for me I couldn't have managed a snow trip unless it meant sitting by fireplace! There is a range of experiences of course: this is just mine. Best wishes