I find it to be quite simple.........As I have said for years, if a particular corps does not attend ALL DCI Sanctioned Regionals you forfit your World Class Status, and should be categorized as an Open Class Status Corp. The following definitions are provided by DCI on their site:
World Class corps can have up to 150 members. Students in World Class corps are primarily college-age with some high school involvement. Most corps from this class follow an intensive tour schedule, traveling more than 10,000 miles over the course of the summer while performing at more than 35 sanctioned events.
Open Class corps have a minimum of 30 members up to a maximum of 150. Most Open Class corps will follow an abbreviated tour schedule compared to World Class corps with memberships made up of a mixture of high school and some college-aged students.
Bottom Line-The corps in question should be competing at the Open Class Level. This would end all discussion of regional placement factoring into quaterfinal line-ups. Corps that compete on abbreviated schedules should not be able to maintain the same status as those fulfilling World Class Corps contributions to the DCI activity.
IF YOU WANT TO BE A BIG TIME CORPS, PUT FORTH A BIG TIME TOUR. ENOUGH SAID.