Here's me with my 11-lb MkV .340.

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]

For me, that Safari Sling seems to feel like it takes some of the weight off the rifle, and it's always ready to shoot. And having it up front seems to offset some of the weight of a backpack.

[Linked Image from i.imgur.com]