Whilst waiting for team Sky on their recce ride of Holme Moss this summer to keep warm lots of riders went up and down the climb several times. ( only 5 times for me whilst several I spoke to did more than double that ) I noticed that most managed the climb seated, it's never steep just goes on a bit. Froome came through at the front, 50m or so in front of the rest of the group, standing for most of the top part of climb, dancing on the pedals ala Contador which surprised me, Richie Porte and the others were all seated and in a group, they made it look easy which I suppose it is given the stuff they are used to.