So, with the cross country ski race season coming to close (we'll still be skiing until April, but my last race is on Saturday... my first 10K!), I was in need of a new fitness program to do before my marathon training starts in April. I have already completely p90X Lean (as of last year), but never really followed the guide very precisely and paid no attention to the Nutrition Guide. This time around, I decided to do Doubles and actually try to follow the guide, just to see where it gets me. I'm modifying it a bit (switching around days, and replacing some cardio with skiing or spin classes), but hopefully I will get some awesome results! :)