re: Better irons: Wilson Staff FG Tour V6’s forged or Mizuno 919 Forged?

You aren't likely to get any better distance out of either, but especially not the V6s, which run a degree weaker than the Apex Plus. The V6 and the 919 Forged aren't really in the same class of iron either, with the V6 being aimed at a much lower handicap. That being said, I play V4s, which are VERY similar to the V6, and they're pretty forgiving for what they are.

If you really want higher lofts (more distance) and more forgiveness, I would really look into the Srixon 5 or 7 series irons, or maybe the WS C300 Forged.