"...the outboard AIM-9s will carry the high-speed cameras that will be used during upcoming separation tests for the principal internally carried weapons, so the configuration needs to be cleared.
...It's not too evident on these images, but the AIM-9X pylons have an unusual outward kick that mounts the launch rail at an angle to the pylon, presumably to provide adequate clearance from neighboring stores."
"Lockheed Martin delivers second F-35 production jet in a week. It was wheels up Wednesday morning, July 20, 2011, for Lockheed Martin’s second F-35A Lightning II production jet delivery in a week. AF-8 arrived at Eglin Air Force Base at 11:50 a.m. CDT."
"....The two inboard pylons appear identical, and such interchangeability would be a logistical advantage over many previous aircraft (like the F-18E/F). I suspect the F-35's pylons are lower drag installation than the F-18's because they look 'cleaner', but couldn't prove it either way without some design data."