Hello Everyone. I decided to purchase Foundation 1 after a few months of following the GB Facebook page and stumbling upon some podcasts and YouTube interviews this week with Coach Sommer. I literally just purchased it today and will be doing the PE1 Initial Assessment on Saturday. Will start the Foundation workouts on Monday. Anyways I have some confusion trying to figure out if I'm making the right selection of programs. I did see that Coach Sommer posted about the curriculum but I didn't see anything about the "Stretch" program in there specifically. I want to make sure I succeed in this and have the right selection of programs from the get-go. Does Stretch integrate with other programs or should it be taken as an independent program?