Considering Vada is one of the cheaper testing agency and is probably considered the best, should alarm bells be ringing if a top name who could easily afford it does not use Vada? Top fighters who are Vada enrolled according to boxrec are: Gonzalez, Crawford, GGG, Wilder, Garcia, Vargas, Jack. Top names who aren't enrolled: Canelo, Ward, Kovalev, AJ, klitschko, Haye, Degale, Lomanchenko, Usyk, Frampton, Porter. It could just be these are the guys enrolled in the clean boxing programme because I know Ward & Kovalev used Vada for their fights but nevertheless that's a staggering amount of top fighters not using Vada all year round. In my opinion although I can't prove it and would have to wait till someone fails a test, I would assume alot of these guys are on a banned substances from amphetimines to weight cutting drugs like clenbuterol to stamina and strength enhancing drugs like EPO, Ostarine and HGH.