I would recommend doing the first three levels on like a cycle until you're able to do pull-ups. Example: Monday-level 1, Wednesday-level 2, and Friday-level 3. There is only one rest day in between full body workouts, so next week you would start on Sunday according to the example. Some people don't have enough time to do full body workouts though, so this is what I recvomend them according to Chris's program. Example: Monday-level 1 half(upper body), Tuesday-level 1 half(legs and core), Wednesday-level 2 half(upper body), Thursday-level 2 half(legs and core), Friday-level 3 half(upper body), Saturday-level 3(legs and core), Sunday-rest day. REPEAT!!! That's what I would recvomend for working out without taking time that you don't have. Cheers!!! P.S. If this is a bad example please tell me so Chris, ruining your program is the last thing I want to do.