Challenge du Dauphiné Vercors

I have just entered the  Challenge du Dauphiné Vercors sportive for May 23rd near Grenoble France. The 158km route with over 3200 metres of climbing will be an optional extra in our Alpe d’Huez to Mount Ventoux week in 2011 (Dates 21st May-28th May 2010). and is a good early preperation for La Marmotte in July