Here is what I think:
at local level, bodybuilders use drugs to get the edge.
then, they see everyone use drugs so they don't get an edge at all !
so they take more drugs to compete at the state level, and they add HGH and Slin if they didn't already do it.
at state level, they realise everybody are still just as fucking good as them, so to get the edge they must use even more drugs, all the fucking time with no time off so they can be good at the national level
then at the national level, everybody use a shit ton of drugs. Everybody are kind of... the same "size".
so at this point you need luck. you need good proportions and structure, and you also need crazy conditionning so you use some guru that are very good with diuretics and carb loading.
THEN, when you get to the pros
Everyone is big
Everyone is ripped
Everyone had "good enough lines", since they got there in the first place
so what do you do ?
that's right, you take even more drugs, and you also start shooting all your lagging bodypart with synthol so you can look as perfect and big as possible.
at this point, everyone use pretty much the same thing IMO
I don't think Ronnie Coleman uses more than Dexter Jackson for example.
it's just a matter of how far their body can take it
