<p>Go ahead and send them. Penn doesn't give a two-flush corn log about IB scores anyhow. Besides, I really doubt bad IB grades would keep you out. As long as you GET the diploma I think you're ok.</p>
<p>I don't think you have to send them if you don't want to. Nobody forced me to sent them, I just did because I got a really good score. They are mostly for credit purposes. Even if you send them, I don't think they can rescind your admission, because they are not your school grades. Conclusion: don't be afraid of doing badly on your IB examinations, just try as hard as you can.</p>