Examples of a Heel Brake in Advanced Settings

Many of us know of the Shaun Unwin heel brake videos: Unwin Heel Brake. As someone who does not use a heel brake, I would love to see some examples of its use in more advanced situations to get a better understanding of how much stopping power the heel brake can have with someone very familiar with it. It is hard to find online examples in this context, which is why I am reaching out to the community. To get the discussion started, I am linking this downhill video. Please check out 1:08 - FIRS Downhill World Championships. What is nice is that you can see multiple speed control/slide styles from multiple racers. Thank you all for any information and links.