I reckon I was wrong about the skiing in La Thuile.
We ended up with three great days skiing in the spring sun and its a place that I would certainly return.
There was five or six good and steep black runs that were always good and plenty of handy enough red and blue piste to cruise on. We preferred the far side of the mountain on the way over to La Rosiere too.
I still feel it would be limited for a full week but was great for a few days.