I have a yellow Fiji leather that I fragged. Its easy. Just take it out of the tank and start slicing with a razor blade. Rubberband the frags to a rock (not to tight) and it will attach in a few days.
I have also fragged my yellow fiji. As stated above just use a new razor. I sliced the top of the rim off so the mother still looks good after the fragging. Just keep your water quality good afterwards and you should be fine.
well i just fragged it..i just cut around the perimeter of the cap..i actually left about half of it...i got 4 frags..i will see if these are successful