He sure was. He was 238 pounds at his first nationals and 245 the following year and got up to 270 pounds by the mid 1990's.
I don't think he ever competed at 270, he appeared in the O once, correct...I never trust the weights from those guys. Demayo never looked as big as Paul Dillett who was a legit 275-280.
As I said, When Flex won his pro card they had on the screen 235, the man was 215. He was 216 @the 93 Arnold, 218@ the 93 O. Paul was 235--but jumped up to the 250's, by that time he was realizing that he wasn't the hot shit he thought he was, plus that incident with the girl. Guns, roids, crazy women and bodybuilders don't mix.