Historic Christianity and Apostolic Judaism: the Core Difference

In this 10 page article Tim Hegg looks at the differences between historic Christianity, Rabbinic Judaism and what he terms Apostolic Judaism. Hegg defines Apostolic Judaism as those who accept Yeshua; accept the Apostolic Scriptures (New Testament); and accept Torah as defined by Yeshua and His Apostles. Is there really a difference between these three groups? Should there be? Hegg looks at the various groups and where their Biblical approach has taken them.