I talked to a coral shipper a while back. He was saying he had alot of mortality with euphyllia during longer shipping like a courier due to tissue damage. He was planning to attach a float to the rock and keep the coral upside down in the bag. Anyone heard of that before ?
Yes, I've had this from LFS. Hanging it from some polystyrene means the fleshy parts should not get bashed/squashed against the edges of the bag. It's common for SPS too.
If you have a read of the damp shipping article I posted, it mentions LPS fowling the bag with their slime due to the water sloshing around and stressing them. Hanging them will help, as they shouldn't then get bashed, but they will still get sloshed about, and may fowl the water.
Might be worth giving a couple of frags of something he's had trouble with in the past a go at the hanging, and damp methods and see which one does better? Tell him to get on here and give us an update :-D