I'm worried about braking my 6x4 lee filters during transport. The original Lee pouch or even other brands filter pouch are still soft material and won't protect against torsion or crushing in soft bags during transport.
The full size Pelican case like the 1200 is way too big (especially the outside part of it) to be used as a box inside another box. The Pelican micro case on the other hand would have been perfect, but none of them are wide enough.
What are you using?