My friend who I trust very much just recommended this to me http://www.pelvicfloorwellness.com/products.php
She delivered her son in 5 pushes with not even a single tiny tear. His head was the 85% and she is literally the smallest person I have ever met. I had third degree tearing so I would like to try to avoid that this time. Anyway just thought I would pass along the info. Might be kind of weird but if you can avoid tearing might also be very worth it!