Are you sure that he had 95% of his size when he was still a teen? I thought he maxed out a 190 or so as a teen. FYI, his max lean competitive weight was about 220. So, therefore he built 20 some more lean pounds of muscle tissue AFTER his stint with volume training. Also, he said himself that he made his greatest muscular gains using Rest-Pause in 78, when he was in his mid to late 20's