First of all you are just flat out wrong...They pushed high doses back then too. Handfuls of orals and full barrels of pharma injectables every few days.
They had Tren Hex, Anavar, Turinabol, Equipoise, Primobolan, They had tons of shit...And they all pushed the doses until they obtained the look they wanted...
Arguably the ONLY difference is the FOOD, GH, and Slin...Guys will not win these days until they hit a certain size, and the only way to utilize all that food is insulin, period.