In the latest issue of Triathlete they showcase some V02 max supplement products in the "Checking In" section. Anyone have tried the products First Endurance Optygen HP or regular Optygen, or BioBuilde? "If one can stick to the training throughout many long years, that willpower is no longer a problem. It's Raining? That doesn't matter. I am tired? That's beside the point. It's simply just that I have to." -Emil Zatopek