I'm going to give you legit advice, since dropping 100lbs is pretty damn impressive.
Read. Learn. Check your attitude.
Especially in the subject of proper diet, Pelt and Taco have a cache of knowledge that is truly impressive.
Long and short is that it is better for you to eat a good, healthy meal rather than replace a meal with a shake.
Personally I think you should either cut or bulk, and not attempt both at the same time.