Question about shipment of products in water vs. just damp

[fyi]

I am wondering if anyone has had corals shipped to them that were just with damp paper towel. Did you notice a difference (besides the shipping cost) in having it shipped with water then with just dampened? I am trying to do a little studying on different methods of shipping.
If shipping with damp towel would be just as good as in water (or possibly better due to more oxygen exchange) then it would be ALOT cheaper to do it this way!

 

[fyi]

also, would anyone like to maybe trade some frags using the two different methods.. maybe we should all do some studies on this, and maybe save a ton of money on shipping in the future!