DAA has been logged and bloodworked to prove it can elevate test levels. I've never done a logged run myself, but if it were completely bunk, it wouldn't still be selling solo, and as part of quite a few pre-mixed products.
Mt Snow, VT - May 5, 2012 - Completed!
Gunstock, NH - June 1, 2013 - Completed!
...i remain, he who remains to be...