I still get a little shimmy when it’s cold out, above 65 it’s 99% solid. The second box was night and day different, I would say some of it was because I bled the system better but the over center adjustment on the second box is at the high end of the scale, the first box was right at the low end, like .1 less and it would have technically failed and been out of spec. FCA still has a huge issue with quality control on these boxes in my opinion. I did end up sending my old box to one of the engineers I spoke with per their request. If they did anything with it is a different story.