Devlin was in pretty good shape from boxing, but the air pack and the RFHCO suit made the work more difficult.
Hukle was also in pretty good shape from his time spent dancing in a cage in a bar in Little Rock. He wasn't as muscular as Devlin, but his small, wiry frame was surprisingly flexible and strong, and he had excellent endurance.
His time spent under the hot lights of the stage, and the fiery gaze of Arkansas's elite, meant that he was better adapted to the hot RFHCO suits than Devlin, but even he found the suits difficult to maneuver in.