It's a fight over the "Northwest" name.
KIRO is trying to block KOMO from using the Northwest name.
92.5 and 101.5 did something similar when 101.5 dropped the "Mix" slogan. 92.5 ran sweepers in the middle of the night to secure the "Mix" with Arbitron.
In the case of 92.5 and 101.5 after the official launch of Mix 92.5, Star 101.5 went back to using the slogan "The Best Mix" However, Arbitron said to 101.5 that anyone righting down "The Best Mix" would go 92.5 since 101.5 had officially dropped it.
Obviously, it didn't work for either 101.5 or 92.5. Both stations dropped "Mix". It will be interesting to see how this one plays out and whether KOMO movies up their rebranding.