Hey Michael,
Have you tried pointing Frost at a PRT Hair object from Krakatoa where the particle spacing is some fraction of Frost’s particle radius (say 1/8th or something so the particles overlap nicely). Would this produce the result you are looking for, or is there something more to the mesh you want out of Frost? If there is something wrong about the approach I’m thinking of, can you show me a picture?
~Darcy