McGuires use of "Andro" was legal at the time...case closed.
Bonds use of some of the crap he is suppose to have ingested, well after these were banned is grounds for having his records expunged.
People do allege Mac of steroid use, but, other than his unwillingness to swear that he's never used them, in the Congressional testimony, and allegations by Jose Canseco, there's no proof.