I bought this as well - it's amazing! It also works for any aircraft (even if they have vc lighting already). It seems the lights are not textures but they use some new technique with true 3d lights - no FX added or custom models... and the best part? no FPS drop either for me! Seems some of their beta testers have created initialization files for various add-on aircraft already! (PDMG NGX etc) - they're in the FSL Spotlights forum...