I just got the P90X program this week and havent really had the time to sit down with it and figure out the plan but I did play with the ab ripper portion of the disks and OMG

! Today Im in massive muscle pain! LOL
So I got out (its freakin cold in Indiana) and ran a mile this morning hoping to loosen up thos muscles a little and still feel like Ive been hit by a truck! So that means its working right???
Has anyone attempted this or even completed it? Would love to know your thoughts on it.