Last weekend, Master Diego Chiriff, of Melbourne, joined Haller to familiarise everyone in the dynamics of poomse (moving patterns) before the inaugural East Coast Championship at the club.
Cadet champions from Thailand and New Plymouth as well as New Zealand junior representatives took to the mat as members honed their skills with the Gold Coast Open Taekwondo Championship bracketed in May.
Haller, of Bangkok, has been a taekwondo gold medallist for eight consecutive years in her country.
The 25-year-old is a bronze medallist from the 2014 University Games and also won bronze at the Asian Championship that year. She is a two-time Asian Games gold medallist (2007, 2013).
Haller not only has the looks of a model but is one although she's quick to point out her kicks make a difference in the dojang.
Most people, when they see her in competitions, tend to look down on her because of her petite proportions.
"I was like, 'Oh, okay, I will show you I'm going to be the one that's gonna kick you'," she says, reflecting on when she was 14.
"Let's say that I'm more afraid of my mom than my fighters."
The second Haller enters the ring she thinks gold only.
"If I lose what can I do. I just try to improve," she says, believing it becomes harder to retain one's crown.
An ambidextrous Haller champions her 1.77m stature and a vicious left leg for her success.
When she was a child, she wanted to be a hip-hop dancer but when the tomboy started getting into too many rumbles with boys in school her father introduced her to taekwondo.
"My dad wanted me to be like that [a tomboy]," says a grinning Haller who reveals discipline overrides skills in taekwondo.
"I don't come from very good technique. I just do more than others.
"Never mind if I'm super lazy, I still have to do 100 kicks, at least every day," she says, revealing her father often got her to do short, sharp drills before and after bedtime.
Chiriff is a first-class Australia referee in the discipline and a national representative in poomse.
The head instructor from Hanmu Taekwondo Club in Melbourne also is a 2012, 2015-16 NZ champion and 2012 Oceania champion.
Chiriff didn't think twice when Pruckmuller approached him to help introduce some of the changes.
"As a poomse athlete and referee we're able to introduce to New Zealand some different ways of training to lift the level and bring what's happening outside New Zealand to this beautiful country."
He says the basics start with children so as soon as they graduate to cadet class (12 to 14) where they are prepared to compete at a state, national and international level.
"It's great to see the willingness to learn here and to accept and take on a lot of new changes the world has given to taekwondo."
Chiriff had eight of his own club members make the cut for the Australia national team last year after some crucial modifications at the World Championship in Peru.
"It was a pleasure to be invited to New Zealand to share some of these new changes and to inspire some of the young athletes to aim higher and succeed."
The 42-year-old says the code builds character but draws on a lot of passion.
"With Camille here she's been able to fortify their beliefs in knowing that they have an instructor who cares and who goes out of her way to introduce what's going on in the world into her own club, let alone her own country."
Chiriff says he's always had a calling to pursue excellence in some form of martial arts as a youth.
"One day I saw kids crossing the road with their tae bok [uniforms] on and I thought, 'Why not?' so I started up again at the age of 30 and now I'm considered a master here in New Zealand, a fourth dan going for my fifth."
It has opened doors for him to compete against some of the best in the world. He considers it a wonderful dream and embraces the challenge to inspire even one child to make something of their lives or to follow taekwondo for a better mental state which will benefit them in school and at home.
"Taekwondo just changes your life completely."
Chiriff says children are the future so as role models they can influence youngsters to become leaders in creating a better society.