Because it is peptide bound through hydrolysis, it isnt going to taste as bland as regular glutamine, it's just going to work a lot better. Hydrolyzed protein usually taste pretty bad, but thats the price we pay.
SilverBack and Big Paul at Swolecats board use it PWO and mix with their whey with great results. They recommend to use it that way. I do it also and believe I have greater recovery. Because this stuff is searching out peptide receptors, not free form amino receptors, is it possible that the "normal" rule to not mix with whey does not apply to peptide bound glutamine?