I have an upcoming safari-and am looking at a good flight case.

A lot of people recommend the Tuffpak:
http://www.nalpak.com/Tuffpak

Its a discreet case-that allows for packing much more in the case--and doesn't look like a rifle case.

But how are they loaded/packed? Is a soft case slipped into the case, then padded with other jackets, etc?

Other cases like Pelican and Hoyt allow for custom cut foam to secure the rifle. It seems like it could be tricky securing a rifle in the Tuffpak.

Has anyone used these cases, or know of ways to pack them?