Power Cables and Affects on Timing (and speed)?

Yes!  Something else I discovered about power cords after having several $3k to $4500 PC’s...sometimes the best mate is free.  After trying all my expensive PC’s on my Krell am I used a free cord I received from my dealer just to experiment.  It was a Sony TV power cord with a small circuit or magnet at the end with silver terminations. Man o man, what a freaking great match!!  Everything about my sound snapped into focus.  Detailed deep taught bass, luscious midrange and a detailed high end with tremendous sounddstaging as well.  Simply amazing what you can find sometimes.

Yes, just as true of the trailing edge. You will need a room that is clear of excessive reflections as this will blur the effect that these sorts of improvements make. In a less optimized system you may get much less impact

@dave_b  Very interesting and what a great story/lesson. 

@randy-11 Thank you for the link. I'm aware of archimago's work.

@folkfreak  I got very lucky with my room. It does need some treatment which will happen in the near future. At my normal listening levels the room is not a factor, and is surprisingly well balanced per my preferences. 

David my guest timing is more connected to speed and transient, tonal balance my guest is not connected to timing but it might help though.