We (my wife and I) finally got back into week 5. I was gone for work a few days and then we had went to vegas for 4 days so our week 4 "easy" week took more like 16 days. Oh well, that's life just happening I guess.Week 4 comments: It was nice to work on the cardio a bit but even thought I'm not muscular by any means, I did miss the strength training. Also, Core Synergies is a !$%#&@^. Wow, that destroyed us both times. Week 5, Workout one. I couldn't keep up with the push ups last night. It was absolutely brutal. I just had to laugh at the end when I tried to do the 1-arm push ups and fell flat on my face. Oh well, I'll give it hell again next week.Also, for those asking for protein drinks/recovery drinks. I didn't want to spend a ton of money on it so I went to the beachbody boards and asked how to save a bit of cash. I was told to get a protein powder, take one serving and mix with 8 oz water and follow that up with 8 oz grape or apple juice. Apparently the biggest deal is keeping the 4:1 ratio and the juice does that. I bought a big tub of powder off amazon or something and it works well.