That's the reason I joined the FMA years ago; that plus the fact that Bruce Lee gave it his seal of approval.
Having since trained in some other bladed arts, I've become convinced that FMA techniques for short rattan sticks do not translate to long steel swords without some modification...
What kind of modifications exactly? I suppose long steel swords are certainly going to be much heavier than the one handed machetes most FMA styles use mostly.
I haven't crosstrained in many weapon arts yet, but I can tell for sure that FMA is closer to Conan than Korean Haidong Gumdo (I'm a blue belt in that) or Kung Fu styles that have weapon forms (quit that after a month). Maybe Muay Boran, but I've never met anyone that taught that.