Hi Folks here are a few simple diagrams to help better understand how the dent can be removed with great results. In this illustration shows the two different approaches of ( on dolly ) and ( off dolly ) . With the off dolly you are holding pressure against the low area with the dolly and...

You wouldn't believe how good this bloke is at removing dents, highly recommended. His name is Ryan Barker. http://www.dentsmartltd.com/