Most of these are tricks or obviousness, rather than skills, but might as well…
Any speed you carry in is preserved all the way through, so going in slow can help
You can generally brake more than you think- and the effects of using too much are generally managable as long as you’re quick.
Often the most important thing is what’s at the bottom- if there’s a berm or similiar then all you have to do is survive the steep bit, you don’t really need to do anything clever at all
Maxxis High Rollers are universally acknowledged to be the best on the terrain you describe.
Maybe in 2007.