I am still new to all this compared a most of you but I totally agree with azda. I started to focus on George V half crowns as they were relatively cheap 8 months ago (is it just me or do the prices for decent George V half crowns seem to have gone a bit mad on ebay/at the coin fairs of late?) and not knowing how much the quality can vary so much year to year. I still find it hard to judge if my grading is accurate or not. It seems the ear on a 1914 HC, which would be gvf on other dates, is EF on a 14 etc. I have actually decided to take the plunge and send some of my half crowns to CGS to see what grades I get back versus what I think they are.