Meant to say 99.3 moved in to South Mountain by Bustos. not 99.9. Most of the remainder were Tacoma, Bremerton, Olympia,or outlying areas or lower power signals that got moved up to Tiger Mt or Cougar during the last thirty years. Forgot about 106.1. By making the move to Tiger or Cougar they became full market signals. Makes for a crowded market. I think years ago KMTT actually used a translator to two to cover the market until they moved their stick.
KMTT moved to Tiger from Three Sisters around 1993. They had a translator in Bellevue on 103.9 and one on 104.1 (I think) in Olympia as well as the West Seattle 103.3 translator up until then....
(Speaking of translators, is the 95.7 translator on 103.3 in Edmonds still going? They had one in Everett on 106.3 until 106.1's move to Tiger. I've NEVER heard the 103.1 translator in Everett for 100.7)
The first move to Tiger was 97.3 in 1988. The initial results were spectacular. Areas in Snohomish County and elsewhere where 97.3 was a noisy mess, 97.3 suddenly became the loudest thing on the dial.
Then 94.1 moved in 1989, 106.1 in 1991. From there it becomes a blur, a mass exodus off Cougar and Queen Anne during the '90s.
The benefit of Tiger was/is better coverage in hard to reach places like downtown Everett with better height and lower power. The downside is spottier coverage in areas outside the general Seattle-Tacoma-Everett area. But it's getting the $$$ areas like the Eastside that mattered most.....