None of those things are uniquely suited to BIG bikes. That's kinda how you should handle any bike off road.
I just spent about 45 minutes zipping around the trails on the property just working low speed skills in the rocks, soft loamy soil and thick moss. I'm trying to get better at steering w/ the throttle while keeping my feet on the pegs and practical uses for lifting the wheel in precarious places.
I have a good mix of easy, medium and hard trails to work on. That of course is relative to the little bike I ride but it still all harkens back to the most important thing you can do which is practice, practice, practice. I have a very steep hill that I've recently added to the mix. It's not very long but it's like a 40 degree hill. I can make it up without too much drama and I've been working on trusting the front brake and body position when going down it. Daunting.
I should do a dual sport training / camping weekend where y'all can bring your bikes up and play in the woods and practice in a relatively safe environment. Start with the driveway, advance to the easy trails then progress as your skills increase. It's only 20 acres but I find it extremely entertaining.
