See below the boards I was talking about by Dan McDonald DMS (Currumbin).
I mentioned that Dans new 8'6 would be sub 7kg after sanding. It turned out 6.8kg. Note in the pics no pinlines etc as was an initial experiment. This board has been ridden for 2-3 weeks with wax and has been cleaned off to stick on a grip. Still looks brand new. Dimensions 8'6 x 28 x 4. EPS, Bamboo, FCS Quad. Fully customisable.
This one turned out great and the one below with pinlines is a custom for another bloke that owns another very high profile surfboard company. Dims 9'4 x 28 1/2 x 4 1/4. Weight inc grip 7.8kg.
The last one is a shortboard made the same way just for colour of the post.
There is a great article on Dan in the latest Surfing World also.
Disclaimer: I rent space off Dan McDonald for my own business, I have no other affiliation with him financially but he does let me do my stupid experiments in his factory wasting his resin and making a mess of his factory. I also like his free mind when it comes to design.