I can't decide between fine sand or basing grit. Fine sand option: Citadel Fine Sand. Grit option: Gale Force Nine Fine Basing Grit

Now, I'm thinking grit. But, I think sand is perfectly viable too. I will paint the sand/grit onto the base with PVA glue, then seal the top with 1:8 or so glue:water.

Supposedly the grit soaks up the glue and paint a bit, so it won't flake off. Anyone have a preference for either? Or have experience with Gale Force 9 grit in particular?