Okay, I just found this in the Devtome -
At one point I noted a discrepancy between my actual word count and what the share count was telling me. When I brought it up with Unthinkingbit, he ran his own script on my invoice and told me what the actual word count was, which matched what I had come up with. At the end of the round, what determined my pay was not the running totals in the files, but the totals obtained by Unthinkingbit's pay script. So after that I figured the files weren't accurate and I didn't worry about them anymore. I never figured out why they weren't accurate either.
Still ... kind of strange ...