Is its high price -about two times a normal whey product- worth taking it, right after training like George Farah advocates it, or should I stick with some BCAA's?
Hydrolization is an expensive process. I read a study that traced hydrolyzed
casein molecules through digestion. They found a faster transit than whole part casein, but unfortunately, a substantial amount of the amino content was destroyed during the rapid digestion process. Basically, the costly process resulted in faster, but less complete amino delivery.
I honestly don't know if the same would hold true for whey.
Regardless, whey is pretty fast-absorbing as it is. I don't know that a hydrolyzed form is meritted. Maybe it is; maybe it isn't. If you want to achieve faster blood delivery, consider consuming your whey drink before your workout is completed. That will give it a head start. I actually prefer consuming my carb drink, BCAA's, and creatine before training. It's given me much better results than waiting until after.