I set some mast tracks in HD foam and routed out a 135L HyperSoinc I picked up on gumtree. The big concaves are a bit annoying but working around it.
Once I finished getting the holes right for the tracks I laid up a few layers of DB carbon and some uni and then set the tracks in. Put the lot under a mild vacuum as the foam the board is made of is super light and didn't want to crush it.
Ill be laying up a layer or two over the top tonight and have a little bit to do on the foils still and then should be right to give it a go ;)