Currently testing:

Chip Morton, Trainer of NFL Team Cincinnati Bengals, USA

Nick Tumminello, 2016 NSCA personal trainer of the year, featured in Men’s Health, Men’s Fitness, Live Strong, T-Nation, Bodybuilding.com, USA 

Michelle Siegel, Dr. of Chiropractic D.C. and personal trainer at Gold's Gym, USA

Camilla Cantelli Mortensen, US Navy Strength and Movement Coach, USA 

Mika Sihvonen, Finland, IFBB Elite Pro World Champion 2018 -90kg

John Kwon, South Korea,  IFBB Classic Physique Pro, Olympia Pro Card holder, 45k IG followers

Dr. Nick Helton, USA, doctor of physical therapy (DPT) & orthopedic clinical specialist (OCS), 150k followers on IG

Shaun Stafford, UK, 2xPro Fitness World Champion, cover model at men’s fitness

Julien Kang, professional fitness travel blogger, 75k followers on Instagram