Hi all, I’m hoping someone here who has had a similar problem can offer advice. The long and short of it is I have a late 2017 Model S with the premium seats, and by the end of my 35 min commute to and from work, my upper back is really aching. I don’t know what it is about these seats. They are narrow and heavily bolstered but I’m not really overweight, 5’10” and 180 lbs. The seat seems to force my shoulder blades forward which I think is the issue with the upper back pain. They don’t bother my lower back. I’ve tried a few different cushions, including the much-lauded sacro-ease, no dice. Still hurts. Anybody have the same issue and found a solution? Thanks for any tips.