382692 Twitter Mass follow problem

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Project Description:
As you know twitter doesn't allow mass follow/unfollow. It uses a lot of rate limiting scheme to avoid it.
I have one tool for this. But the problem is twitter recently banned some of my users for using this tool.
Now I just need to know how should I setup my cron or how frequently I should call friendships/create?
I need some idea so that I dont get banned.
If it works, you'll get paid.

I dont need experienced hand. I need the proper idea.

Skills required:
Anything Goes, C Programming, Perl, PHP, Python, XML
About the employer:
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