I find the circle icons that show on the home page with the percentages of completion very useful. Especially the blue outside ring that shows progress on variants and chases. One thing bugs me though when a series doesn't have any variants or chases. Instead of showing a complete blue ring (which in the case of a normal set would indicate a totally complete set, including V/CH), instead it displays as if there were V/CH but you don't have any (no blue ring at all). This makes me think that I'm still missing V/CH when in fact the case is just that there aren't any. I think it would make more sense to just have the blue ring display as complete when you complete for core series for any set that has no V/CH.