There are many people who believes that rotating a part in a certain angle will reduce ringing/ghosting (due to the reduction in speed in each of the axes). Well, you do not have to talk their word for it! Try it for yourself and see if it really improves the print for your specific printer!
Note that the model is a solid object throughout. I recommend setting infill to 0%, increasing the parameter to 5, and set the top layers to 0.
Set parameter to 5 (which is 2mm for a 0.4mm line width) and set top layers to 0.