The second half of the '70's was a little tough. Did not get the benefit of a two-year lag time before moving up to 2A in 1976. DS played in districts with higher enrollments. Ironically, DS actually jumped to 3A in '78. That reclassification had nothing to do with enrollment. Class B schools did not like being referred to as B schools, so to remedy that, the UIL reclassified them as 1A and bumped everyone else up an A in classification.