Following Fred Sanford's departure after the 1980 season, Hardimon became Director of Percussion for the Santa Clara Vanguard from through . During this time, SCV won four High Percussion awards (1978, 1979, 1988, 1989) and three DCI World Championships. Hardimon served as a consultant for SCV from 1997 to 2000. He has scored music for many other corps (including Blue Knights from 1990 to 2001) as well as college percussion ensembles and marching bands. He has worked for Disney and bowl games such as the Citrus Bowl, Orange Bowl, and Super Bowl.