Are there any known issues currently with Britax harnesses? DD chaperone has been fine (granted the chest clip has always been nearly impossible to slide easily) until this past week or so. Out of nowhere I went to tighten it and it didn't want to pull all the way tight, like it was stuck. I took her out and got it out of the car and didn't see anything wrong visibly. I tightened it without her in it and it did stick at one point then with a good hard yank it gave and went the rest of the way tight. A few more times of adjusting the harness and it went back to smooth but as soon as I put her in it it started sticking again. I'm a little worried considering that is a vital part of the seat! Without going out to the car, i believe DOM was Jan 2013 if it matters.