You should perhaps open the sides the sides of the cavity, it will looks a little less monolithic ?
My walnut was aromatised, i've bought it in a luthiery shop and there was parrafin on the both sides of the plates to block capillarity and regulate water penetration.
My walnut was aromatised, i've bought it in a luthiery shop and there was parrafin on the both sides of the plates to block capillarity and regulate water penetration.