I'm usually against GNC for their crazy ass prices but I did break down and bought 2 3lb jugs of the Amplified Wheybolic Extreme 60 powder and have been very impressed with the results. Is there any truth to the leucine base making it superior to most proteins? They claim it has a bio absorption in the 90% area so your body wastes little. Just wondering if anybody else uses it and if there are cheaper equivilents because I have noticed a difference from the last powder I was on.