So today is Max Plyo Circuit, a killer workout (like any of them aren't!)
This one is especially hard on my knees, and I noticed last week they were sore for about two days after the workout. I may need to get a plyo mat to use during the power jumps.
Hot damn there are a lot of push ups in this workout, didn't notice as much the first time, probably just trying to keep up! The only one I have a problem with are the jump up push ups (I think that is what they are called, where you do a push up, and from the down position then jump up to your feet, really hard. I do a few, and then just do regular push ups as Shaun recommends if your form is not perfect.