Tropical Meteorology Project's Philip Klotzbach points out that there is indeed a difference in where US landfalling hurricanes form, and where in the US they hit (and I would add, how strong they get in the aggregate - with more Majors forming from development in the MDR, as well as in/near the Caribbean), based on where their genesis occurred.

Another facet of 2017 to think about as we head into the peak of the season.

Philip Klotzbach on Twitter:
"Hurricanes making landfall along the Gulf Coast tend to form further west. MDR hurricanes more likely to hit FL + U.S. East Coast."