Client wants a flake system There is a slight movement in a couple of flags. The pavers are sitting on sand any new products out there that can lock these pavers in place then perhaps do an overlay followed by a flake system? But never did a flake system over stone would like to hear some ways of tackling this project . The stair I thought of maybe filling up with some crack filler sanding it down not sure if the stone will be an issue but need some help I have to touch base with client