Map curves with an appropriate number of nodes
Use a reasonable number of nodes to map curves and other non-linear features. There's no hard or fast rule about how many nodes should be used to map curves – you need to use your own judgment – but there should be enough so that the change in heading between successive segments of a way is relatively small – that is, the angle between adjacent segments should be closer to 180° than to 0°. Therefore, sharp curves require many closely-spaced nodes, while broader curves can be mapped with fewer, widely-spaced nodes.

YES!!! If 20 will do, why spend the time and energy putting in 10x that amount?