I've been wearing my new BBDS jeans for a week now. They are starting to soften up just a little (they feel more like stiff paper rather than cardboard). I also think they are stretching out as I break them in. The baggy fit and loose waist is sitting lower and lower on me. If I wash them, how much should I expect them to shrink? Is it safe to assume they'll shrink down to their tagged size and I'll be able to continue breaking them in?