My opinion is that drug use changes the game. Drug using bodybuilders are not working with the same body as natural ones. The responses to training are not the same, the stimulus that is optimal might not work for the other and vice versa.
People think that drugs simply enhance the response to training… for example if you gain 2% size on a program naturally you’ll gain 10% with drugs.
IT DOESN’T WORK LIKE THAT. Drugs change your physiology. Drug using bodybuilders, especially those who abuse everything like steroids, GH, insulin, etc. essentially are working with a completely different body that will have completely different responses to training.
That doesn’t guarantee a great physique, I’ve know plenty of abuses who barely looked average. You still have to put in the work to stimulate optimal gains. But things that work for a drug-using bodybuilder will not necessarily work for a natural.
IMHO this is the biggest negative effect of drugs. Of course there are the health issues, but that is a personal choice. The biggest drawback is that someone who used drugs for a long time might have developed a way to train that will not work when he decides to stop. By the same token the type of training that works great for a pro bodybuilder might mislead drug-free lifters. You CAN learn from pro bodybuilders, but you gotta keep in mind that their physiology is different which will cause their body to react to training differently.
As far as drug being the finishing touch… for some it might be for others it’s a game changer. Those with incredible genetics… those who can build truly amazing physiques without drugs can get very far naturally and then get just a little extra that put them to national level. For these people it is “just the finishing touch”. I have worked with a pro bodybuilder who is “off” 6-8 months per year…during that time he lose a bit of hardness, maybe 5lbs and some strength, but still looks amazing. Of course he is not a mass monster (for these guys drugs ARE the difference) he competes as s 212, but was good enough to beat Meadows
There are those who do not respond well to anabolics… guys who can use grams per week and not see that much difference. There are bad responders to any type of substances. For these guys “drugs are just the finishing touch” too but for a different reason: drugs don’t give them the crazy gains that good responders get.
But as far as bodybuilding is concerned, especially modern bodybuilding drugs have, sadly become much more than a finishing touch, especially with today’s mass monsters. Arnold was about 225 at 6’1", Zane was about 180 in contest shape… a far cry from those who are 270-300 on 5’8" 5’11".