Would have to agree with Nomad about the folks that have all ready committed to the new criteria. SB/HP hunter has gone thru some changes (to say the least). Over the last year or so a fair number of folks picked up a 1712 w/2 stage trigger (or had trigger work done to they 1710 turning them into effective 2 stage triggers), myself included. Picked up a out of the box 1712 with fiberglass stock to meet the then current rules, only to have them changed recently so the hunter class is pretty wide open with aftermarket stocks, barrels, triggers, etc, etc, etc. From what I have seen at the matches, the folks using the latest equipment (in general) are the shooters very involved in the sport and are quite proficient. Basically if you gave them a sling shot they would out shoot me as an average shooter. As for myself, I could go out and trick up the rifle, and it might buy a couple more targets. Not sure its worth the effort, so will keep using the rifle as-is and stay in my AA classification. So the same argument for freezing the SB/HP hunter records prior to the new hunter gun specs could be made.
As for how the rule change, I would agree it was poorly thought through, especially with no input from the shooting community. But, with all the rule changes that occur, dont think an * by the record should be done to reflect the change in equipment rules.