I still have issues with color, both scenery and rolling stock still not correct. I am still having to make corrections through NVIDIA control panel. Diesel exhaust going through traffic bridges, sparkles around some locomotive handrails and locomotive and freight car trucks. Not trying to be a rivet counter but IMHO after 2 years of mostly European and passenger DLC this seems to be a placation to those who purchased when first released and have given up on it. Yes there is a bit of improvement in the physics. The AC4400 is still not correct as to train brake pressure propagation. There is absolutely no train slack physics, even TS2019 has this. I don't see steam running on this in the foreseeable future because of the physics involved with it. I do not have the ultimate gaming system but it certainly can not be considered a potato so it should run this well. I'll give the update a 3 out of 5. I think that I will park this in the shed and bring it out for the holidays. This is most likely the last and best attempt on Heavy Haul. Still strong on TS2019. Huuu Rah!