Those were the old Federal Premium #6's but not the Flite Control Wads. I have the ported barrel and choke tube. I read somewhere the Flite Control Wads won't work out of the ported barrels or chokes. I have the Gobbler Extreme Choke tube on mine with a .670 exit diameter.
Don't believe it. At least it hasn't been the case for me. I did not notice a huge difference when the wad changed, and the change was for the better. Both my choke tube and the barrel were ported on my Mossberg 500. This year, I'm switching chokes, but it's so my son will have the ported choke tube.
But then again, remember that all shotgun/choke/load info is highly individual. Seemingly identical gear can function with radically different results.