Ed, i think i good follow up study would be not if this product really works, but rather if this product works better then a simple mild dish detergent and soft fingernail brush.

How about a follow-up study showing the difference in cleaning methods.

Also, granted these chips were very dirty, i think there's a definate possibility that the type of dirt (this being surface muck) might be different then the "not cleaned for ages casino grime".

I look forwaard to your addition report. Thanks much for the post!