Insanity and DEP PT

Oh man, both times I have been to my DEP workouts with my recruiters and my Future Sailors we have done Insanity workouts. I think they are created by the guy that does Tae Bo. I have read that the same person who directs the workout DVDs for Insanity also does P90X and Beach Bodies.  The last time I did one of these cardio workouts, I really was feeling it the next day. Either I am more out of shape than I think or the workout is really intense... probably a little of both. PT is getting easier. I can't believe it's only a little more than 30 days before I leave... 34 days and counting. Soon I will have my 30 day check-up with my recruiter to check my progress.