Monday the team participated in a charity golf tournament, and Tuesday the players underwent physical fitness testing.
Applicants go through a rigorous trial process including fitness testing, skills testing and examination of their school reports.
The agency said volunteers must pass psychological screening and fitness testing.
"I feel ready to go," said McReynolds, who has not yet undergone fitness testing, but appeared trimmer with better muscle definition.
He was the final player named in the 2004 Summer Olympics team after Ryan Archibald failed last minute fitness testing.
Potential operators must have a minimum of two years contemporary sworn policing experience before undertaking a series of psychological, psychometric and physical fitness testing.
During the unit they will look at training methods, principles of training, fitness testing and look at how the body adapts to training.
The squad re-assembled in January 2012 for fitness testing and training.
After a week of physical fitness testing he'd been accepted.
Both offer facilities for physiology, fitness testing, sport psychology practicals, dietary analysis and practical work with food.