M
mikebidd
they will probably get onto that its more for when your tiling the reveal to the top but i still do it when tiling part way up
so if a right hand reveal is out of plumb strike a line down from the the part of the reveal thats over to the left and mark on the cill, cut your key cut as you have done but cut it to the mark. tile up the face so that the left hand edge is plumb. you can then make good to the reveal so that you have an even adhesive bed
its the opposite hand on the left hand reveal, when the jobs finished the window is framed nice and square, theres nothing worse than tiles folowing a reveal that is out of plumb and it really shows on the finished job
they will probably show you this but if they dont ....ask!
They have probably shown me mate i just dont understand it in the terms your using. Not that good yet lol