Tape Fair Quality

I am running DataProtector v A.06.10

I know the default owerwrite for tapes is 

-age (36 months)

-usage (250 overwrites)

Is there a way to extend these values as my tapes are marked as fair even though they are only 29 months old and have 61 owerwrites.

To be honest i can not confirm whats the value set to at the moment as i am not sure where to look to confirm the settings.  

Many thanks

Milan