Clean bill of health for both piggies -this is an "exotic animal" vet and he seemed to know a lot about piggies...
But I asked him to check for lice and mites and to make sure they were both males - definitely
Their skin looked perfect, and he said it's his opinion that all piggies carry a few lice - and he could comb in several different spots and not get any, and they could still have a few.......... but the key was a Vit C enriched diet and good care, and they will be fine.
(Hope it's ok that I posted this here in a response as well as in response to my thread on the Vet board)