This data is so subjective that I could never consider it valid.
I tried to recreate your results using the same parameters, but I couldn't.
For example,
Blue Devils:
Your Data: 257 seconds playing and marching
My Data : 352 seconds playing and marching
Cadets:
Your Data: 406 seconds playing and marching
My Data : 388 seconds playing and marching
I got close with the Cadets, not sure what you did with BD.
hmmmmm.