Andy nailed it on the head concerning the gap between BJ and HA. HA people wear pins which say "100% Hyles" to church! The life of Jack Hyles is a mandatory class there! They teach you to soul-win by tricking someone into saying a prayer and then putting another notch on their Bibles- then claim to have won many 100's of souls to Christ. I find it interesting that they win so many more than the rest of us, while using abhorent techniques. The believe that the KJV is an inspired translation, and Dr. Hyles specifically stated that if you're born again from any other translation than the KJV, than you're born again unto the Devil, and need to be born again again from the KJV. Not to mention they are rather anti-intellectual (go figure). The key here, concerning separation, is that they only fellowship with others like them on these issues. However, BJU is multi-denominational while maintaining a historic fundamental stand on separation and fellowship. They will fellowship with fundamental Baptists, Presbyterians, Methodists, Bible churches, etc. They do not make an issue out of women wearing pants, Bible translations, or any of these other non-doctrinal issues. Why, there is such a gap between the two, that someone from the H-A type camp wrote an article about BJU, stating this, "We now must conclude that BJU has fully entered the New Evangelical camp." Sheesh, just tell Dr. Bob that!!!
Now, concerning the "left of Falwell" being far left...well from the perspective of anyone who has any grasp of the application of Biblical separation mandates to contemporary Christianity- well it IS pretty far left! Falwell practices fellowship with charasmatics and far far worse! He started off fairly fundamental, from what I have heard, but after starting that "Moral Majority" he went down hill. I could be wrong, and please correct me if I am, but to be left of Falwell is basically to be willing to fellowship with theological Liberalism.
For anybody questioning the validity of this whole debate, might I suggest "The Dividing Line", by Mark Sidwell.