When I get my cables they are pre-cooked.The cables usually need some play time to settle down from the cooking process.I would think that 8-24 hours should do it.That's what I heard from Audiodharma also.You could also be hearing things that you never heard before.Try putting on a good recording that you are use to.Good systems and good cables can reveal crappy recordings.
good luck
bobf
good luck
bobf