There are some people that are trimming their corals to get better shape. I'll see if I can find the video. For instance your slider, they would cut it off the base and cut the top off removing the 'stem". They would then regime the top to the base so it grafts back to itself. Essentially then you have 4 growth tips growing off the plug. You can also glue the stem back on a different plug and start a 2nd frag. I like to glue mine horizontal. I find there are more growth tips that come from it.
Just a thought...