Hello all, If you have been following along you might know that I'm in the process of building a hearth for my new Fireview, along with a slew of other projects in the works as well! I am a great CNC Milling Machinist if I say so myself but a carpenter I am NOT! I have constructed my hearth so far without a problem and now I'm ready to lay the slate tile. I pulled the tiles from the package and these tiles are incredibly different to say the least! The thickness of these tiles vary a lot, I have never tiled before so I need some help. I bought a few more boxes of tile to try and get most of the tiles with the same thickness to make it a little easier on myself. How do I compensate for the thickness of each tile? Do I just use more thinset under the thinner tiles or do I shim it somehow? Any help would be appreciated so I can get this knocked out before the Patriots game tomorrow.