I watched the vid. I'n not being mean here- i'm just saying- you should learn to drive better and correct the truck in flight to be able to land jumps.
When you go brushless you're crashes will be ten times more destructive. The vid was "lame" by RCM standards, but we all started somewhere.
You've got a nice rig going and I'm anxious to see more vids (hopefully with improved driving
You're in the right spot if you have any questions. I'm a bit of a maxx guru, feel free to PM me. Peace.