I love those plyo workouts!! Each time I try to use heavier weight. I even do a couple of them back-to-back (plyo sections only) and use them for cardio.
I started out not liking meso 3 much, but I ended up liking it a lot. Going heavy enough made all the difference. Now that I've done it as it was meant to be done, I'm using it in different ways. Like I'll do chest and back, go a little lighter, but during the rests I'll do squats or deadlifts to make it more of a total body workout.