The preworkout orals makes no God damn sense for pump people. There is no hard science there when it comes to using it only at preworkout for pump. It's not going to drastically increase blood volume, hydration, glycogen or NO. Obviously consistently being on an oral like adrol or sdrol for weeks will improve pump. But this idea it has some immediate and drastic effect on "pump" when not consistently taken is false.
Max pump is simple. Glycogen (carbs the night before or sufficiently before), good sodium/electrolyte balance, optimal hydration and a vasodialator as finishing touch. Viagra or Levitra. No pump supplement compares. Cialis gives me more sides. Levitra the least (was designed to reduce sides).
Dbol or Adrol 30min before workout for direct "pump" improvement is bro myth tard lore... Spare your liver. That said, consistent use of sdrol has some crazy glycogen retention properties, nearly unmatched by other orals.