I listened in for both sessions. Dave was pretty upfront about the changes being minor, but it did make it very hard to pay attention. The 2nd general Q&A session was a bit better but overall I'm not sure what I got out of it.
Nothing against Dave at all, but may have been better as a general rules refresher that highlighted the minor changes vs focusing on just the changes.
Andy Harvey
1990 Ericson Olson 911S #149 Hawkeye