I've drawn attention to this before. David J Smith is an offshoot of WCOG and Herbert Armstrong. That's not to say he's not interesting -- he is -- but to point out that he has questionable antecedents and doctrines.
The following source, Christian Media Research, is informative on the subject, but it itself is in disagreement with dispensationalism (that's us).
Maranatha,
Bobhttp://www.fivedoves.com/letters/june2013/stevenk622.htm