correct sort of. Dan Maskell showed us how to lean out only moving the top half of your body so that only the head and hopper is visable. Any other method sticks far too much out. For example if you tilt your hopper inward, then generally half the gun, elbow, barrel, upper arm and head stick out.
Lean the hopper outward and only hopper head and barrel stick out. Keep the gun upright and you get a blend of the two.
So from what Ive seen and learnt, its hopper outward.