Thanks mekaeel. Not something i have done before, as I am really not into lps.
The best technique would be to use a dremmel to cut the underside of the coral, and a scalpel to cut through the fles. Just ensure that each frag contains at least some polyps, as this coral is a heavy feeder. A slow grower, so don't expect the recovery and growth rate you can with acroporiids.
Be very careful to damage too much of the flesh on this coral, (hence the scalpel) as unlike euphyllia sp., you have to cut through living tissues.
Feeding regularly will speed up growth and colouration.