Nowhere near it.
Nice to see tracks set in wood, that is a new one and would be a great insert. However that is relying upon the compression resistance of the foam (there is nil) to stop the tracks from sinking,
and it has not enough glass over it.
(1) should wrap glass around track insert first so it comes up the sides and will meet (bond to) the outer laminate later. I'd do 2 x 4oz and a bit of carbon at least - dependent upon other construction factors
(2) needs about 4 extra patches on the tracks and then a couple of bigger ones over the whole tail and tapering up to front foot. I put more glass over FCS or Futures inserts on a kitebord than he has for foil tracks


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I'd not tape the boxes, good glassing technique means no resin in the boxes. What he has done there required sanding later to taper the glass down, so its really thin over the black plastic track, so not enough glass right where u want it, and edge is more likely to lift. Do it right with 6 plus layers over tracks and router out the slot later.
As an aside also - pouring resin like that is really bad on EPS, it will suck it up so bad and that's why he says "wow this is using more resin than I thought..."
At least he figures out to squeegee it later for the deck, but still pours too much in one area.... pour and squeegee in a line keep it moving and don't let it pool as the EPS is a sponge.
Brilliant product and I'd love to try the kit but as instructionals go its very basic, it will not last long.