Accurascale website images are great and so I decided to take the plunge and buy packs P, Q, R, S and T sight unseen. Couldn't be happier. The detail is better than excellent and looks and feels quite robust. They are also extremely free-rolling and honestly cannot be faulted. I absolutely loath tension lock couplers so I also ordered some Accurascale magnetic couplers as an experiment, but they are too short. So I have gone back to Kadee couplers which look good and work flawlessly. For me, KD#18 works best for me on my Castle Cement rake as 3rd radius is my minimum. Maybe #19 or #20 will be more appropriate for tighter radii. It was super easy to install them on all 15 wagons and the height was perfect. Looking forward to hooking these up to an Accurascale Class 66.