Couple of places Dave - the run down to Smoylan lakes that goes past the button lift on the back blue has a fairly long flat bit and if they cannot get up good speed it's best to avoid it.
The other much shorter 'walkie' bit is less difficult to avoid as it is towards the final stretch of the green run home. Not too far though and most people just have a chat whilst making their way accross it.
Don't mind the odd flat its just when you find a run where you hit a flat spot, then you can board again for 100 metres, then have another flat spot and so on
Avoid run number 8 then, at least until later in the week
hopefully it'll carry on snowing all day, such a weird scenario, in Tignes we just had too much snow so visibility was bad and now i'm back and praying for the stuff to hit Pamps
Just the 2 that pete mentioned that I know of. But the green, if you get enough speed up and had a wax from the snowshack you'll clear most of the flat.