You should continue pursuing inactive PSA's & CSA's for as long as it takes. Firstly you will receive 30 VP's for sending them mail once a week and the another is that you never know when they will become active. Some may take weeks or months before they actually decide to start working their SFI business. I have had a few that just signed up and never bothered doing any task's at all. Then suddenly they started working. And when they become active again be there for them and help them to move forward.
So I definitely think it is worth pursuing your inactive down-line by sending them motivational mail & E-cards every week.
All the best to you
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