The POINT is, my friend, that BCAA's ALONE are not a replacement of whey.
There is prob no difference between the scenarios you proposed other than wishful thinking. 20 grams alone, 8 grams with whey, whey alone.....big deal. It's all a bunch of sup witch doctory
8 grams with whey, if someone wants to combine them should be enough to garner whatever increased blood spike you're gonna get and save your bucks. CUZ sipping on endless amount of BCAA's versus whey is just not going to make a significant difference, IMO. And it's just opinion anyway. I've done this long enough I've failed to notice a difference between one around the workout protocol and another.
People fail to understand the real affects of "fast blood spikes" and so throw away money on aminos. This is the danger of getting your biochemistry info from supplement vendors. You want my real advise, buy more whey to use around you workout that way you have your "bcaa's" and the protein you NEED anyway. It's like arguing over how much Coke to put in your Jack Daniels, or whether Coke is best or a 25 cent cola will do. Either way, you can't really improve on a good shot of whiskey