What impact does the l a s e r have on the -B variant? The image posted by Spaz and the words in the pdf link ("the concept for integrating a SSL into the F-35 Joint Strike Fighter would place the laser system in the fan cavity of the short-take-off-and-vertical-landing version of the aircraft and use the fan shaft to power a megawatt-sized generator") suggest you can either a STOVL variant or a l a s e r variant but not both together. Or have I missed something?