Jesus Christ this thread is stupid.
You want FTL Z-Fighters? Which proof works best for you?
Goku dodging lightning as a child or Piccolo's Special Beam Cannon (clocked at .5 light speed based on when he blew up the moon with it) being avoided by Radditz. These are relatively early feats from characters with a fraction of the power that would become the standard by the end of the series.
Strengthwise, Goku by himself nearly destroyed Earth simply by transforming to SSJ3. Just the act of powering up shook the whole damn planet. Whatever power fuels Z-fighters is also strong enough that Vegetto was able to keep fighting after being turned into an inanimate object. So if Z does posses the Light Hawk Wings, he's up against one of the only crews in the omniverse that have a shot at breaking them.