mine jumping is easy tho cause you just get heavy move slow and shoot the mine as it falls to your feet and it throws you forward. Or 180 and do it, but its really a waste of mine ammo that could otherwise be used to mine disc lights.
The youtube videos don't really help me much simply because it was recorded using someone else's tribes. It's not exactly the same for me, but if I view in a rec file I can see exactly where I need to be shooting from their point of view.