It would be incredibly useful and is a great idea that should be picked up by NECA for future use! Thanks for posting it!
In fact, the original Halo Actionclix cards had the entire dial printed on them just like the example here from the HCRealms image. That was the main thing I wished NECA had changed when they took over, but alas, no. A least they numbered the clicks now, so maybe we'll get there someday...