Use Rubi's just because they're what I used when learning, like someone else said, just comfortable with them. Need a new wet cutter though so may try a different brand this time - living dangerously you know.
I found a tile today that the mighty Sigma can't cut, tried Ruby on it Dewalt 2400 ,hand held wet saw, Andy Carroll kindly let us try on his top of the range Sigma with and without the click clock breaker not a chance here are some pics. Thanks to Andy senior Andy Junior and Waggy.
Does that tile have a thick glaze on it?. If so the score is not going through the glaze to reach the biscuit. Hence why they just break anywhere they want to.