Thank you for your kind word and you are absolutely right too that the UV light can shade so much added information on chips - I rely on the UV to tell me more about the chips than my magnifying glass.

The sites of Greg Susong, John Kallman on the Cruise chips and Kallman & Noble Australian sites are the best example who has several chip collectors contributors their findings using UV lights - a case in point are the contributions of Tim Harry on the Sky City Adelaide variations.

Thank you, have a nice and a great night.

Leonidas