The annual NFHS survey on rules is now available (might have been for a while, but I just found it). The link is:
https://www.nfhs.org/custom/active_surveys/default.aspx
You will have to be an NFHS member and login to take the survey. It has one page on the newly implemented rules from this season, one on general Points-of-Emphasis, and one on possible rule changes.