This is the reply I got after emailed the tech dept. at Fulcrum Italy in regards to using their skewer with a Look HSC-6 carbon fork.:
Thank you for reading the instruction manual. You must be one of the few that actually does so and it is important.
To find which quick release should be used with your Look fork, it is necessary to contact Look.
We have found that most carbon drop-outs squeeze under the pressure of the QR skewer, either failing or substantially reducing the clamping force.
Best regards,