Does a typical doper dope continuously before and during a major race like the TDF, or do they inject things on a day to day basis? For example, was Vino probably doping throughout, and just eluded previous tests, or was he clean and then injected some blood cells prior to stage 15?
I would think using testosterone, you’d need to be doping a long time to see benefit, but blood doping you could see instant benefits from having more red blood cells.