Exactly. Until 4Androstenediol was developed, (around 2000?) Andro was more than useless...
5Androstenedione, which is what McGwire claimed gave him that physique, was in fact garbage. (and if he was using any real amount would have caused Gyno)
Mcguire was probably on something more like 750mg enanthate/week for 10 weeks + 30mg dbol/ day for the first 4 weeks.