3-6 minutes between sets??? Are you talking about the whole session or just the couple of exercises where the reps are low?
As an example, the first session you've got there, there's 21 sets. You'll be in the gym, sitting around for 60-120 minutes. That doesn't include lifting time!
As Sherk says, give it a go and then adjust it from there. Make sure that once you get something you're happy with, give it time to get some results. Don't follow it for 2-3 weeks and then throw in the towel because you don't seem to be making gainz