Going to install new toilet in remodeled bathroom with new tile. I always saw the flange screwed to the sub floor, so this is how I did my floor. Now reading this site and seeing a thread that had a cut away of a toilet with the flange, I can see that it is better to have it on the finished floor. I did not install the flange yet so I can still correct / improve this. Can I just put some mortar down, let it harden and screw the flange down, or should I go through the hassel of cutting tile to fit in there. Right now the plastic flange sits slightly higher than the tile. Reading this site, I'm going to go with the flange with a metal ring which I understand is slightly shorter. Any thoughts.