I only go through the proteinfactory.com actually just placed an order this morning.
I always like to mix it up a bit, its fun messing with the different blends u can make. I usally stick with CFM, casinate, hydro 1400 is a must for BB and then I just through in what ever. some of that amogien (dont no how to spell it) works great just through in 5% of that into the mix and you'll be all set. personally I like the chocolate the best, and make sure u get a sweetener!
sawboy2 (his screen name) is one of the guys that works there hes always online I like to talk to him and ask him what he thinks of a blend I made up and he'll change it up if he feels there needs to be something else in it or not.
good luck bro!