lol thats true but how some pros make that big leap in size is probably the result of oil.
kenneth also had tiny joints and a small structure, he couldn't become a monster without the oil i think.
I have his 93 training video and he had already huge arms though.
His arms was always good.
I think he injected oil on his rear delts. Not arms.
Normaly,if you inject it, that part looks puffy.