Please use our links: LEGO.com • Amazon
Brickset.com is a participant in the Amazon Services LLC Associates Program, the Amazon.com.ca, Inc. Associates Program and the Amazon EU Associates Programme, which are affiliate advertising programs designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.
As an Amazon Associate we earn from qualifying purchases.
If you are definitely set on this strategy though, I can attempt to weigh my chromies and give you their weight. That way you can try to find the difference between a normal set and one with a chromie... but again, the chances of that even happening are slim in my humble opinion.
It's too hit and miss..
However, I don't have experience with it, maybe it's more effective and "full-proof" than I think!
Also didn't a collector used a 'X-RAY' technique?
Something to know before you start ripping open 2007 battlepacks ;-)
In it, DaveE makes some very interesting points including one about a secret method of determining what boxes have it:
Wish I had X ray vision :P