Moe, for you, you have to eat, eat, eat, eat, eat, eat, eat, eat, vomit, eat the vomit, eat, eat, eat, vomit again, eat that too, eat, eat, take a dump, and eat to make up for that lost dump.
Conservation of energy, its as simple as that. My friend takes protein shakes to help build mass...ok, let's think about that for a second, shall we? Mass in - mass out = mass gain. So, do you really think having a drink with two scoops of powder is going to make you magically gain 5 lbs in a month?
If so, you must be eating sludge, because if and only if you eat 5 lbs of the powder will you gain 5 lbs of mass (ignoring all else). You just can't gain 'extra' mass because your drinking muscle milk.
For you to gain weight, you would literally have to eat a small snack or meal every hour. I have a fast metabolism like you do, so I can melt away the weight just sitting here typing this. I also road cycle, which burns calories like no ones business. So either I can road bike (which is advantageous for me because I am thin and have long legs), or I have to not road bike and eat eat eat and go to the gym. Cant do both, it won't work.
Id eat things like bananas, oat meal, eggs, bread, pasta, tuna <-(that an easy way to eat lots of protein. Just open the can and eat it {while trying not to barf, the **** gets disgusting after 3 days in a row}), nutragrain bars, yogurt.
Trust me, after day 3 or 4, you get sickkkkkkkkk of eating non stop.
But, unlike Jason, we never have to worry about getting a beer gut. So, I just relax and have a beer and play poker with my friends, and ride my bike on the weekends when I feel like exercising. My BP is 110/70, so I am just fine.