I'm sure that doping was incredibly widespread. Just like in baseball. Look at the raw numbers in MLB today: the number of pitchers with an ERA under 3.0 has

I'm sure that doping was incredibly widespread. Just like in baseball. Look at the raw numbers in MLB today: the number of pitchers with an ERA under 3.0 has doubled this years compared to ten years ago, and the power homerun leaders are down about 20 HRs as well. You've got some technical and strategic changes that might help to account for the ERA improvements, like increasing emphasis on defensive skills at some positions, and massive increases in the usages of aggressive defensive shifts, but the HR numbers are pretty clearly the result of cleaning up steroid usage among hitters. There's been a few ballpark changes that have switched some of the old bandbox parks over to parks with larger outfields, but that's not enough to get us from having random third-basemen and shortstops cranking 40-50 HRs to where we are now.