Sorry, just a follow-up.
If you are trying to add mass, I wouldn't restrict carbs. You *want* insulin, you *want* to create an anabolic environment for your body to grow.
Protein requirements actually go *down* somewhat when you are eating over-maintenance calories, assuming your energy needs are met with carbs and fats. The actual best estimate is something like .8 g/lbs of *lean* body mass. When cutting, you want to overcompensate, because some of that may be used for energy, so you want more protein.
Massive protein intake/restricted carbs during bulking is in essence using protein as an expensive, inefficient energy source. Sure, it may work. But I think there are better ways to accomplish it.