Patrick: I agree with your list of 'musts'.
Have followed the debate back and forth on 6 loaded / 6 fired, and find it somewhat amusing. It seems to me a well intended thing that misses the point. The good intention was: We want to be inclusive...and the 6 rule would allow all the owners of revolvers to compete. Well, sadly, there are probably hundreds of thousands of revolvers out there in sock drawers and night-stands, and precious few of them are ever taken out on the weekend to an ipsc match. Why? Because the owners don't compete...and wouldn't compete regardless of the rules. In fact, ask most of the owners what ipsc is and they will have no clue. So, in my opinion, ipsc and the others have to grow first from within, ie., those who know of them compete or, compete more often...or in a different class.
Open class revolvers will allow the 'more than 6 rounders' to play. And play they will, imho. I know I would---and I do not shoot ipsc now.