Hi everyone. Ive been having similar bother with tiles breaking. I use a TX700. Today I was laying 600x400 porcelain and found that when i pressed the breaker down the tile would split as normal till maybe about halfway down it would crack. This happened a couple of times until i ended up just having to use my wet cutter. Could this also be due to the breaker being in the wrong postion? Also, i tried using a bigger blade, and snapping the breaker down a bit quicker but tiles just kept on cracking. This happened when cutting long ways down the tile. Ive never had this problem when working with porcelain before. Any advice would be much appreciated. cheers.