J
jay
Yeah, I meant to mention in the original post that I realise the profiler should run along the edge, but I have found it difficult to control and to get an even finish that way. I have gained better results by using it the way in the pictures. I lay a polishing cloth over the face of the tile so that the guide wheel does not mark the tile and it works well for me.
try using gaffa tape on the guide wheel might help