[jyl]

Okay, removing the stone tile and backer board is nasty work. My son is doing most of it. We use a circular saw with diamond blade to cut along the grout lines of the 12x12 tile, then use hammer and prybar to pull the backer board off the plywood subfloor. It takes some prying even though the backer board is only nailed down here and there, not glued down. I think he might not be sawing fully through the backer board, so we may be able to improve the process.