Thanks John for the input...
It's great to hear from someone that is crazy enough to do such coral runs.  I can live with 75%, but I am shooting for 90%.  I wonder how they do the shipment from Bali to the LFS.  Some suggested shipping coral using wet newspaper  

 Anyway, I was thinking about changing 25% of the water half way through my trip 

 .  In the mean time, I will shop for heat packs and clean out my styrofoam box...
richard