I can’t think of any reds that have must do lines on – the worst is gypsy there is a very exposed crux line at the top. Walkable though. Definitely no unavoidable jumps etc. The blacks are worse, there are some unavoidable gaps on those. Treat the tovieres blacks with caution.
The enduro routes are very mixed. I think they’re fantastic but depends on your view. You’ve got stuff like ice tignes which is a lot of steps that are pretty unridable purely because of the exposure but fantastic views and riding otherwise, wild nez which is a rock fest and hard to ride, the new one Rocky ride I think it’s called which is essentially riding down de la face the WC ski piste. Then you’ve got fire track runs that aren’t too hard but go right out into the sticks. Some of the footpaths brevieres side are really good.
Agreed the Val side better for the beginners in your group. Just bear in mind the long blue and green down into Val Disere are great for less experienced but they are really long, I’ve seen a few bad crashes at the end of the day due to tiredness.
Give us a shout if you fancy a ride or a beer when your out there, I’ll be roughing it in the camper down at Val disere.