and if that does not work you can try driving over your rubi or smack it against a wall or use a flame thrower or just do the right thing and throw it off a cliff :smilewinkgrin:Don't have all that faff with a Rubi!
Just scribe and hit it with a hammer.
Just to add , make sure you set handle depth to suit tile depth , this makes full use of the breaker ... 5mm from rail to handle runner.. Then score nd put breaker foot about an inch in and sharp quick wack on the handle to shock the tile and if you have set the depth correctly , then no chance of crushing the tile no matter how hard you hit the handle.
a common mistake is not setting the cutter to suit tile thickness , a big advantage of the sigma over any other machine.