I'm going to installing a custom designed mosaic (from ModWalls.cm) glass backsplash in the kitchen. It'll be about 20 sq. ft, just underneath the kitchen cabinets and behind the oven/stove.
I already have the tile, grout (using StarGlass grout), and will be getting the thinset required for glass tile. However, I had a question about back-buttering. Since a single tile is only 3/4 inch, with the tiles in approximately 1' x 1' sq. ft. sheets, do I need to backbutter each tile? It seems rather difficult to do that so I was wondering if it is even practical and/or necessary?