So I've just purchased a Henge Dock for my late 2011 Macbook Pro 15" and plan to run it in clamshell mode (obviously). The issue is that you have to fix the power cable to the dock which means using a dedicated charger is a necessity. I have a spare 60w charger which as I understand can't quite power the laptop when in use. But, with the laptop in clamshell mode I would think there would be less power demand as the screen isn't on. Anyone have any experience with this or know if the 60w will handle the task? Cheers in advance!