I agree shipping overnight is best. I've shipped several RBTAs and I prefer to use FedEx Overnight. I believe either shipping with or without water is fine. After seeing how some anemones hang limp from rocks at high tide (see Lewy's thread at the top of this forum), I am confident no harm would be done. I've always shipped with water, the buyer has always requested that--and since they're paying for shipping.... I like to put one plastic bag, rubber banded down into another plastic bag, down in a third bag to make sure the water doesn't leak out. I put old rags around the bags for insulation and in the winter I ship inside a styrofoam container. I have shipped in mid-winter and used the little heat packs you can get at sporting good stores that skiiers use. This time of year, you probably won't need heat packs, just insulate it well with newspaper and/or cloth.