Personally I would only take 1-2 shakes a day and just replace the others with food sources.

Dude your over six feet tall...you should be eating that much if not more to grow especially if your working as hard as you should be and doing what is required in this gym for this phase. I eat more than 4000 cals when I workout with this kind of intensity!

He's got a point bro! I've been training 18 month roughly and i'm at the stage were I need around 4500 cals just to maintain. Everybodys different ofcourse, but if you're a tall ecto like me? Your gonna need around the 3 to 4000 a day to grow. From my experience atleast!