Interesting Question - One that will be discssed at the ASCLS Region III meeting being held September 22-24, 2010. In Savannah. On Wed. Sept. 22,2010 Jill Dennis of Thomas University will be giving an update on gel vs. tube. For more information on this meeting you can contact: brussell@mcg.edu or go the ASCLS webpage and look up events for September. Hope to see you there. CBates