Oj, been working ower the holidays on similar thing (finaly some time), I usualy try to make boards out of the comman stuff. 2 different types of wood here -soft edges (25% of length which is actually over sized skim 130x54 cm, mirror TT) http://picasaweb.google.si/matej.merkac
you can still se on picture the stuff that was soft brushed off, hands last
board ready now for vacum ...
I decidet not to put anything on top, 2 layers of carbon under and thats it, soak top with epoxy and than see depanding on weight and flex. Wood is actualy a spruce tree, slovenian and african (called Marupa..basicly same thing to ours just lighter.maybe more flex) so just hoping to stay under 4kg.
has a 3 cm concave so i want to keep the flex in all directions. + additional rocker (no cheating)
I say just go for it, but apply in 2 stages the glass, to see after some days what flex vs stiffness
u forgot to tell: startded with max 1cm before even tuching it with el. grinder.