Wrong...all wrong...
Every guy who is on gear and training will tell you gear is the main course.
GH and insulin are the gravy...it's the only way to move into the upper ranks of the sport.
Why...we recover faster, we store more nitrogen in our muscles for power, we have increased hemocrit or blood cell count for oxygenation and we increase in muscle mass.
Can't do this natty, or through a special training routine or using a protien shake.
Yes...a solid workout routine is important...so is time on the iron..but you get to a point where you hit the wall...gear takes you one step...GH another...insulin the final step in the evolutionary process.
Warhorse