Thanks Nick,
Yep - Plastic cable ties, aka zip ties. I've tried everything under the sun to get Colt coral to attach, and these are the only things that work.
I find with these, I can "snug" them down just enough so that the frag doesn't escape the rock, but they don't tend to squeeze/cut through the coral like a rubber band does.
Also, if you use a very sharp blade (new razor blade) to cut the coral, it will tend to produce less slime.
Also, as a side note, I tend to run carbon for 24 hours post-softy-fragging.
