hello, I wonder if in case any of you have ever had either a 1500R or a 1800R, unfortunately, having never tried curved monitors, I have no idea of the differences of these 2 curvatures. what is my impression, but I can obviously be wrong, is that the 1800R gives the idea of being almost flat, that is really slightly curved, however I ask you to tell me if this impression of mine is true, if the difference is small, and in any case if you know how to illustrate the differences given by the different curvature. thank you