This video was from earlier this year and it features the manager of the Grand Prairie AirHogs talking about the importance of performing well at an independent baseball tryout. He mentions how he keeps the files on his desk for use when talking with other teams and lower levels of independent minor league baseball. Take heed of what he says:
Become aware of upcoming tryouts by joining the notification service here: Independent Minor League Pro Baseball Tryouts
If you need some help increasing your 60 yard dash speed times, arm velocity, vertical leap ability, hitting power or improve your muscle mass for any professional baseball tryout (or private workout) then here are some resources to help you: Resources for improving your chances at any pro baseball tryouts