That book
was written by some guy named Wong. :) Do you really think he would publish inaccurate indices?
Honestly, I haven't looked at the differences. I would assume they are minute. The only differences, I would assume, would be due to better technology for generating indices - ie faster computers and able to run more hands. In the long run, it doesn't matter which indices you use IMO. Some truncate, some don't. IMO, It's not that big of a deal in the real world application. Pick a set of indices from any reputable BJ author, and use those. You'll get the money.