I picked up all of them that Todd at the chip exchange had left. I had wanted 600, but there was a miscount and all he had was about 380. I too got them to use with those eldorado fracs. It seems though that the condition of the used 5’s are not as used as the eldorados. I have yet to stack them up next to each other, but from a quick glance, the 5’s look noticeably thicker.