With 27 individual pieces of sterling silver in my "Vine" guitar, and extensive gigging and general playing, not a single pieces has even come loose, let along fallen out, so why do you say glue wont hold it??
I believe skibum does a jewelery makjing course at school/college or something.
Its probably something he was taught there.
I think it means you cant just glue 2 pieces of sterling together independently, but as your vine has an ebony finger board surrounding the silver, it is glued into the ebony, rather than glue together.
Like i say, i *think* thats what hes getting at!
Matt