Ok, well it looks like it is running:

April 9.30am - 6.00pm (link)

Beanum found a couple of routes with maps/GPS files here:

Route 1
Distance : 13.9 km
Temps : 2 h
Dénivellation : 550 mètres

Route 2
Distance : 14.8 km
Temps : 2 h 30
Dénivellation : 400 mètres

Route 3
Distance : 8.6 km
Temps : 1 h 30
Dénivellation : 250 mètres

So if we can get these into the GPS, we'll give this a try. There look also to be quite a few routes from the top down, either some full-on DH/Freeride routes, as well as more rando/XC type routes.

I found this site (in french) giving a little review and some videos of the more extreme routes down. Not planning to hit the 3 metre jump for sure link

So...hopefully we find some suitable routes tomorrow. I'll try to remember to post back on what we find.