Not sure there is that much over in Torgon, I did PPdS from there in 2008 and whilst the final drop back into Torgon through woods was excellent there was quite a bit of riding over fields, I can see how the earlier poster got lost.
The group of blues in Chatel are excellent (rock and roller etc), don’t be fooled by the “easy grading”, the red accessed via a short downhill road section from the mid point is really good once you’ve got your confidence.
The riding in Morgins is good too as is the stuff down from Champery back towards Avoriaz.
Col du Cou mentioned above likewise, look on map for Arrette de Berois (probably spelt that wrong)
A lot of good riding isn’t on the trail map, it’s a combination of fireroads and tracks through the woods. Hiring a guide / teacher for a day split between you would be worthwhile and IMO its worth buying an IGN map when you get there