I weighed my ASM samples. You can see the results here:
http://chiptalk.net/forum/showthread...hip#post164421
The Circle-square chips were a pretty consistent 8.8 grams.
The horsehead ranged from 8.3 grams to 9.3 grams. I was surprised by this , but didn't chase it further to account for the variation. My samples are an assortment of different colors, inlays, and sources.
I had a similar result for the Roman mold samples, which ranged from 8.0 to 9.0 grams.
If you want, I can go through them again and see if I can detect any pattern that corresponds with the weight variation. Or I could just post pics with the weight of the individual chips.
If your chips ended anywhere in this range, I don't think there would be any problem. The only problem might be if different colors of your set had noticeably different weights. That could be a bit disturbing. Has anybody with the big sets of ASMs noticed a difference in the weight of their different colors?