We need to differentiate between blades and forgings. Blades can be cast, forgings can have a huge player-assisting cavity back and perimeter weighting. I play a forged club, for instance, and it ain't no blade. One reason we're seeing more blade-like clubs (Ping's iteration, now the S56, for instance, or Mizunos MP 59 -- one cast, one forged) is because of the multi-material phenomenon, putting discrete slugs of dense metal to create far more forgiveness in a club that might look like it has minimal game improvement built into it. And we're seeing more forged "hacker" irons because of the same type of advances in material usage, and people finally figuring out that it's about design, not how the hard metal was made hard. There certainly are a lot of studs out there still playing muscleback forgings, for sure.
stomper, I LIKE the GC addition!