I think the Starch thing is that it breaks it down kinda, If you soak itreal heavy it gets so stiff it is not even funny, but when you wear it it bends it all up and breaks it a little.
I don't know how it would work on charart type stuff but the "woodland" (not the ripstop) material beaks down after a while. but i think maybe wearing it in the sun and dry'n it out in the sun may contribute to it as well.