Hi Steve, Bill, RM, and all passers-by! Maybe you can help me with this one. So far in my lifetime I've managed to carefully avoid participation in clock comparison tests, mostly out of fear that my badly abused ears wouldn't be to hear any difference anyway. But with the imminent arrival of an HD system, i am faced with the choice of using the internal PT clock (rumored to be much improved), my Lucid Genx6-96, or my Cranesong HEDD as the master. If you have any opinions, they would be welcome, but assuming that I would "want" to do my own test I have a couple of dumb questions: DUMB QUESTION #1: In comparing the three, do I want to record the same piece of audio three times (once with each clock) or is it sufficient merely to apply the three clocks just to the playback of a given piece of audio? DUMB QUESTION #2: What, in you opinion, makes the "best" kind of audio source material for exposing differences in clock quality, i.e.: loud vs. soft, simple vs. complex, test tones, single monophonic instruments, reverb tails, widely panned stereo stuff, etc. Any thoughts on this subject would be welcome. Feel free to ridicule the dumbass questioner as well!