Just in the past week I began to notice a subtle "clunk". I might even feel a little something, but that could be in my head. What I think it is is the new hill-hold/anti-roll back mechanism releasing the brake caliper. However, it only did this, previously, when I was on an incline and at risk for rolling back. Now it seems to do it even on flat surfaces which makes me question my diagnosis of it being the hill hold. Anyone else seeing/hearing/feeling this?