Believe it or not, I changed it to "Option 2" (for lack of a better term) where the dates overlapped (ie. end one address on 5/31 and start the new address on 5/31). The reason being is that was how my address history was listed from when I had entered it into AirlineApps years ago when I applied to the airline I currently work for. It would seem the current vs. permanent address may have carried more weight? Not sure. So much voodoo in all this airline hiring stuff.