Lionel, the big boss, designed the worldcup tracks in Les Gets from 1996 to 2002 and the worldchampionships in 2004. Mountain bike instructor and guide, he teached ski during 10 years, and he's also a pisteur.
Jeremy, mechanic and skitech, riding his bike every day, he is a very good mountain biker. Jeremy use to work on cars and motorcycles and he's great on mountain bikes and will give you very good advices.
Arthur, is a mountain bike instructor, calm and patient, he will give you great skills and nice feeling on your mountain bike. He's coming from BMX, street and bowl, but he's also very good in roots and singletracks.
The Hub les Gets is the place you can find great bikes and good advices to improve in security.