Thank you, everyone for all your advice. With a better quality of light and magnification, using the trailing edge with a coarser stone setting and focusing on one side of the blade, I can now very much feel the burr! You advice has made a huge difference and my faith is very much restored in this system. I still have much to read and learn first hand, but feel that I am much more on track, all thanks to your insights. Looking forwards to building my knowledge via your reading suggestions and this forum!