If you want a clear point, then why not use the moment it bottoms out. So when key travel ends, instead of when key travel starts. In most cases, it'll be much

If you want a clear point, then why not use the moment it bottoms out. So when key travel ends, instead of when key travel starts. In most cases, it'll be much closer to the actual activation. If you want to be even more thorough, publish both times (which you can get from a single video).