Good to see people start talking cornering technique.
This video totally transformed my cornering technique on loose surfaces this year and this is after 40+ years cycling (came from a roadie background, turned MTBr in the 90s). Its amazing how much faster I take corners now. If I do start to slide, I am centered over the bike.
There is ALOT of good advice in cornering technique on youtube videos. This video just worked for me.
For anyone wanting a book to improve their skill, I really like this book.
https://www.amazon.com/Mastering-Mountain-Skills-Brian-Lopes/dp/1492544493/ref=sr_1_1?crid=2OXOX9CDG8331&keywords=mastering+mountain+bike+skills&qid=1677036778&sprefix=mastering+mountain+bike+skills,aps,132&sr=8-1
Interesting that Lee McCormack actually states in this book that you should never countersteer(which I dont agree with). His rational is to lean the bike hard underneath you to engage the side knobs. I have met Lee and watched him ride here (Valmont bike park in Boulder CO) and his skills are incredible to watch.
Like many, I was also into sport bike riding and attended the Keith Code riding school and religiously used his books to improve my technique when carving in the mountains of California.
Here is another interesting video, yeah its about motor bikes but still worth a watch
The original video, I dont believe addressed 'really slow' riding...like 2 or 3mph doing something like negotiating a tight uphill switchback. I am totally on board with countersteering but just dont see how it applies here.
In the end, just have fun and do what works for you, I use all sorts of techniques, sometimes just for variety, riding two wheel machines is so awesome