Choose your tool wisely: U charts are more informative than run charts with or without tests of significance. A comment on Unbeck et al. (2014), Unbeck et al. (2013) and Kottner (2014). Issue 1 (January 2015) - Simon, Michael; Griffiths, Peter; Kottner, Jan; Unbeck, Maria; Sterner, Eila; Professor, Mattias Elg; Fossum, Bjöörn; Thor, Johan; PukkHärenstam, Karin; Beckstead, Jason W.