(http://gallery.orpington-astronomy.org.uk/albums/userpics/10062/Guiding.jpg)
Very pleased with the guiding on PHD2 on or about 1 arc minute error correction , although it can go off here and there but this was near end of capture.
Roger
(https://images.duckduckgo.com/iu/?u=https%3A%2F%2Ftse2.mm.bing.net%2Fth%3Fid%3DOIP.sXY8yKNF0HzoEpRZdB_xAQD1Es%26pid%3D15.1&f=1)