Brian, I like the 0.3 veil too. But it is thicker. It will build an even stiffer panel. BTW, how are you planning to mate the halves? Carbon Joiner Tubes of glass cloth? If glass cloth, consider applying that with nitrate dope too. Probably 2.4 oz bias cut is more than enough.

I've tried the "shortest path" before and wasn't happy with the result. It had a tough time sealing, needing way too many coats to do so. For wet sanding that is. But wet sanding is not the only option.....

I don't think it will hold up to wet sanding. It doesn't sound like enough sealing coats went on. But what the heck! And you always have dry sanding available which should work well enough for primer. One thing certain, the primer will show every flaw you can't see at the veil stage.

The weights you are seeing are on par with my honeycombed panels, area for area. Definitely lighter than non-honeycombed. Glue weight savings is considerable; my regular 530 square panels take about 40 grams of epoxy top and bottom skins. Yours are taking half or less area for area. Another way to say that honeycombed panels expose about half the foam area to the wood. Sounds like the early weight estimates for the wings that we kicked around should be very close to the real thing. I still see around 10-12 ounces per wing ready for equipment.