I do my final plane iron sharpening on the 8000grit stone and when I
am lapping the back it gets really sticky and a black "glaze" appears.
I soaked the stone and spray a bit of water on it as I work. The
iron is really flat just like the stone and once the glazing starts it
is really tough to move the iron on the stone.

What am I doing wrong and how do I correct this?
Joe