The conclusion that the 430 years refers to the time between Abram entering Canaan and the Exodus, and that the 400 years counts from the birth of Isaac to the Exodus, still leaves the Chronology at 307 years. Extending the chart to 430 years leaves a 123 year gap between the year Levi died and the Exodus. The next step is filling the gap, starting with plugging Moses’ and Aaron’s life dates into the Chronology.
There is also the question of YHWH telling Abram that his descendents would return to Canaan in the fourth generation (Genesis 15.16). Four generations spread over a couple of hundred years. How did that work?
This link Filling the Gap: The Four Generations will take you to an essay discussing that question. Once again, the tables, even with the plug-in, do not post well on the blog.
Grace and peace to you,
Dori