You heard wrong. What part about "being sore with minimal muscle gain" don't you get? If you're actually eating 5000 calories a day, I think it's safe to assume that you're trying to grow bulk and muscle...well you're not going to do that with GVT. That's fuckin pump training..."edurance" training. That's not going to bulk you up, it may 'tone and shred' if done with the right diet, but it'll never be a good bulking workout.