that is what I found so interesting. He just coasted into shows before. Suddenly he's up at 90 minutes a day. that's what many guys use. I know we all lose a bit of metabolism as we age, but this would be a major change.
Dexter has been doing cardio since around '03-'04. He claimed during all is previous contests that he never had to do cardio, and I've seen numerous times where he claims that (and other competitors that are envious of that ability of Dex's).
I don't think he was able to get by with zero cardio at all, and show up as ripped as he did then, he earned the name "The Blade" for a reason, and not doing cardio I don't think is correct to his claim.