One last thing with HUD stats is that you may want to consider using some color coding. This will make it easier for you to interpret the stats on the fly. Humans tend to be better at more quickly recognizing and giving meaning to a color as opposed to a number. I recommend using the street light colors. Red for stop, yellow for proceed with caution and green for go.
So with VPIP in full ring for instance you might want to set it so 1-15 is colored red, 16-35 is yellow and 36-100 is green. I have personally used some slightly different colors over the years so I just stick with those but you get the idea.