I am planning on moving many of my user files from my internal HDD to an external HDD for space reasons. Having read up on this subject it appears the easiest method is cloning the user files to the External HDD and then changing the path in Sys Pref. One of the possible draw backs I have read about is a speed hit because the boot drive will now have to access some of the library files and caches on the External HDD. How real is this? My Internal is NOT a SSD. I am not all that interested in Sym Links, because I don't use the Terminal much and I don't really get how they stay intact. But I am willing to learn if it will make a significant performance difference. Thanks for any thoughts or experience with this situation.