Same here. I don't know if it's also residual inhibition.
Also, hearing certain high-frequency noises knocks my tinnitus out for about 10 seconds, then it comes back slowly over 20 more seconds (not very useful if you have multiple tones though...). I thought that this was considered residual inhibition.
Yeah I also get that effect. Mine changes so frequently anyways that I stopped doing that. I could be laying down at night and one ear gets high pitched, then staticy, then a very quiet white noise sound, and repeat, all within 30 minutes. It's weird.