Break In Time for Nordost Norse 2 lines


I've gotten the Nordost Frey 2 and Tyr 2 interconnects. I'm wondering what others have found about the burn-in time. I've spoken to Nordost, who told me 7-10 days, but while it sounded great, the upper midrange and treble were quit hard and bright even after that.
I'm no newcomer to Nordost: I've had Frey, Tyr, Valhalla interconnects (still have a Valhalla interconnect and ALL the original power cords and Valhalla speaker cable as well, but I'm wondering - from the experience of users - how long they found it took to settle down. Mine took a few weeks, but I wasn't aware of it right away, due to a family member becoming quite ill. By the time I'd returned to the system, I noticed it wasn't hyped up on top, but I'd put in another carpet, which over damped the sound, so that skewed my conclusions.
What was YOUR experience?
gbmcleod
NORDOST FREY (version 1) ICs and speaker cables:

took me about 300+ hrs minimum and even after that there were further incremental gains on a much smaller scale over a much longer time... I actually gave up fully tracking them

Was the extended wait worth it: U betcha!
In my experience, if it sounds like crap when you insert it into the system, no amount of burn in time will help.
My Nordost dealer has a Vidar. So I personally have had all my cables burned in on the Vidar. Never heard them get any better. That being said I have heard them get worse. An application of the Eco3 or Eco3X would help tame the highs when they would didn't sound right. I think it has to do with static buildup. I have the Tyr2 IC's and original Frey SC's.