Grazematch - 2:36 pm on Feb 28, 2009 (gmt 0)
If the QS has been hit due to LP, it is impossible to revive the score even if you get yourself a new account. The system would remember your domain, and it won't matter what changes you make to your website.
If you think your LP might be hit, best thing to do is to try first with a temp domain. If it works, then mirror it and change the URL.
In all other cases, a new account will help.