I don\'t think you can have the same samples on 2 different drives or folders for Logic. If you do, everytime you open a program in the EXS, it will pop up and ask you which one that you would like to use. I would just make sure all EXS samples and instruments are in one place. You don\'t have to tell Logic where they are, it will search for them when you try and load a patch.
Also, when you convert a Gig in EXS, you can delete the actual .gig file after to save space.