exiscan spamassassin conditions

I have SpamAssassin pulling the required_hits from mysql now..

now what I can't figure out is having exim prepend **SPAM** in the
subject based on the information from mysql.

what I had before it was pulling from mysql was a default of:



  warn message = X-New-Subject: **SPAM** $h_subject:
       log_message = System filter tagged as spam - (score=$spam_score).
       spam = $recipients
       condition = ${if >{$spam_score_int}{50}{1}{0}}


that was tagging everything at 5.0+ as **SPAM** in the subject...

Now 5.0 isn't default..  some users in the mysql db may have set it to
4.5 or 4.0, etc, etc...  I can't figure out how to set the condition to
have it tag it according to the required_hits in the database..

Please advise...

Lance