permanent rock structures

[sharuq1]

Those of you using permanent rock structures (cemented together, used rods, pvc frame, etc), how do you cope with issues that would normally require you to move a coral? Sps, you can break off of course, but what if you wanted to frag some zoos? What if your gsp was choking something? Since you can't take out the whole thing, how do you deal with that?