I made this composite of the two known magazine covers featuring Darryl Powers/Lance Ponton.
At left we see Darryl by Champion at the beach for JR., "The Boys Guide to Physical Fitness." Yeah, that's right if you consider masturbation to be exercise. At right in a photo generously provided by blog viewer Calorman, we see him as Lance Ponton by Falcon on the cover of Tomorrow's Man, a bodybuilder mag that was also favored by gays. Lance is shown as "Mr. Florida," but multiple searches found no record of him having held that AAU title. Some other Mr. Florida? In any case, I'm not surprised that he didn't use his nude modeling name if he did do competitive bodybuilding.