Not including the 10 people from the B corps, the 2009 Blue Devils hornline had 49 of 76 people who marched somewhere before BD. The corps previously marched included Crown, Cadets, SCV, Bluecoats, Boston, Blue Stars, Troopers, Colts, Academy, Crossmen, Spirit, Mandarins, Pacific Crest, Jersey Surf, Cascades, Southwind, Esperanza, Mystikal, VK, Fever, and Oregon Crusaders. 17 had never marched drum corps before BD. Of 10 rook-outs, only 1 had never marched before. I also know the pit had people who had marched Phantom, Cavies, and Madison; making BK, Glassmen, and Pioneer the only active World Class corps not represented. Numbers like this are pretty typical of the Blue Devils.