Ken,
My comments are strickly my comments based on years of expierence. Look at the numbers f people shooting in each class and then look at the number of opinions for and against. I think that the number that would have changes in either class are a small number and it should be easy to count or estimeate a number from the posts against the status quo. The number of people registering in each of the two classes seems to indicate whether or not the class is OK. If there would be any changes as you questioned, I would suggest that you change the distance for MBR to 40 yards Maximum and see what happens as far as the number of entries.
I don' t think that in a competitive sport you will be able to come up with a system or class that will staisfy everyone. This is still a sport like any other that your decisions are an effort to satisify the majority. GOOD LUCK