If you landed on this page, you are probably done (or about to complete) BBG 1. If that’s the case, congratulations! After completing the BBG 1, I was not sure whether I should continue with #2 or redo the first one. If you’re in the same boat, you landed on the right page! There is no real answer here, everybody is different. I personally was hesitating because I could not do push-ups on my legs, (I was doing it on my knees) and I found BBG 1 really challenging (since around week 6-8). I made a choice considering that I have completed BBG 1 twice and it was time to see others moves.
BBG 2 is really fun. I liked it more than BBG 1 because I found it more manageable and easier. There are fewer reps for each exercise, with allowed me to do it better (There are for example 20 reps in tricep dips in BBG 1 and only 15 reps in BBG2). The body parts are really separated (this time it’s legs day on Monday, arms on Wednesdays and abs on Friday). At the bottom of each page, Kayla tells us what to stretch (upper/lower body) and what to do on the next day (for example, on Thursday week 13, it’s LISS for 35-45 minutes).There are also challenges on the weekend (I am not going to lie to you: I never did any). The main change with BBG 1 is the weight. We start with this guide to use barbells/dumbbell and not only our body weight. Kayla also indicates a range of weight, for example, 3-8 kg. It is really interesting to see that more I was completing the program, more I was increasing the weight of the dumbbells, from 4 kg to 8-10 kg (on the other side I still struggle with the 15 kg barbell).
Obviously, (it would have been too kind), the reps get bigger with time (I mean, Kayla, 60 commandos? seriously?) and new exercises appears (welcome to the FUN caterpillar walk and Plyo push-ups world).
I liked BBG 2 more than BBG 1 because I had more time to complete it (usually), and I found it easier yet challenging. It is not a boot camp like BBG 1 and I finally did push-ups on my legs (don’t worry about that, you will not have the choice). I also lost weight: 4 kg in BBG 1 and 3.8 kg in BBG 2, which is pretty similar.
I did not change my cardio: I usually run on Mondays, Thursdays or Fridays and sometimes Saturdays. I walk during my lunch break (the equivalent of around 2 metro station) and I complete my 10K steps every working day (Monday-Friday) and sometimes on the weekend.
As an answer to your first question (what brought you here), I would consider how you struggled: if you completed BBG 1, that means you can jump into BBG 2 and maybe after completing it, going back to BBG 1. But if you cannot complete all the exercises on time, maybe redo BBG 1 and save BBG 2 for later. This being said, ( I think you understood the idea) I enjoyed BBG 2 more!