Hi Cat.
I just had my band placed last Tuesday. I, like you, hate most of the Protein drinks. They are disgusting. But, I did find the EAS chocolate is pretty good. I have been using it. It's better if you get a cup of some kind you can freeze and then put your milk in there after your cup is frozen and add your protein. I only do one scoop of protein because, like you said, it gets to thick and gritty. Also, if you add a couple pieces of ice, it seems to make it taste better.
Hope this helps. I have lost 14lbs in 8 days! Woo hoo.
Amanda