Solution for the crackling/ear tip fit fail issue!

I actually stumbled upon a fairly easy way to solve two issues I had: 1) I started having a crackling sounds when moving and/or touching my right AirPod when it was in noise canceling or transparency mode, 2) My ear tip fit test always failed on my right Airpod, even when renewing the ear tips.

Therefor I started thinking it had something to do with the way the AirPods is behaving in noise canceling, transparency and/or ear tip fit test mode, so in fact with the perception of sound outside of the ear. So I sucked (yes, you've read that right) on the black vent right next to the ear tip (which is the one facing the ear) a couple of times because I thought something must have been clogged. I've done the ear tip fit test every time and suddenly it went green again. And also the noise canceling and transparency mode work again with much less crackling.

Hope this helps.