On one of the previous posts I noticed a picture of the display on a V3...I believe the post was concerning the VDI readings of gold rings...on that specific display, I recall seeing a % next to the VDI number. Is my V3 supposed to display the % also.....I have a Spectra Vision..I also thought I may have to enable this feature in one of the menu's....but I cant find how to do it... PLEASE HELP