I agree with FED EX field, It's a wonderful stadium and the acoustics and sight lines are great. RFK is an echo chamber, It's great for DC United games and barely good for National games. Collage Park, Maryland 2000 was a last minute rush job by DCI when the FED EX deal fell through due to the Skins changing ownership. But with long term planing Collage Park could be a great venue too.
As far as changes: Tickets prices are too high at regionals and finals. No alcohol at drum corps shows.( drink afterward with your friends)