If it was correctly made it should have nothing but materials data in it. You can open your MAT pose in any text editor to look at it. You should see a short "paragraph" with a version number and several longer paragraphs headed by the names of the materials. Anything else is not needed or wanted. The only things you should be worried about is including the object file, a texture that isn't yours, morphs you didn't build, or a non-distributable cr2 (aka, vickie3). If all you have is the MAT pose and the textures, and the MAT pose is under 20K, you are almost certainly clean.