Some information from the old forum (original poster: minitim):
Quote:Handy site for comparing different SU needles, and plotting them on a chart.
What is nice, is that you can see the size of the needle when dividing it into 16 different stages, thus enabling you to polish your needle to a different needle profile
http://www.mintylamb.co.uk/suneedle/
![[-]](https://samini.co.za/images/collapse.png)