I've pretty much tried every weight gainer in the book lol . Have not used them in awhile but the first one I took was Serious Mass and I have came back to it many times. For me it is tried and true. As DX said though it is a little tough at first but you will get used to it.
Traphouse all day no lunch breaks.
"I donít believe that anyone knows what his or her full potential is, I donít believe in genetics as a ceiling for performance, and I donít believe in plateaus." JMB