He is a direct disciple of Australian Wing Chun pioneer William Cheung and is founder of his own system, Arnett Sport Kung Fu.

[1] Though Arnett had learnt martial arts from his uncle,[2] he was reluctant to display his skills, as he felt that Asian martial arts were seen "kicking and flailing" and considered to be effeminate behavior that could attract ridicule and other kind of unwanted attention from the local youth gangs.

[2] In 1996 he completed a three volume video series on Arnett Sport Kung Fu starring Grandmaster William Cheung and himself.

[2][3] In 2002 Arnett opened a 3rd school in Orange Park, Florida and would being distributing of training guides for Traditional Wing Chun Kung Fu and Arnett Sport Kung Fu in DVD and CD-ROM formats.

[4] In 2012 Arnett was personally invited by William Cheung to be guest instructor at the Cheung's Wing Chun Kung Fu Academy in Melbourne, Australia Headquarters of the Global Traditional Wing Chun Kung Fu Association.