Rubbish! I still have a set of Callaway blades made about 12 years back. They were the Bobby Jones model. I have 3-9 irons plus the Bobby Jones driver. So, certainly not the first Callaway blades.

More "new" designs to extract cash from the gullible public !!!   Have played golf for 50 years, still have set of Slazenger Peter Alliss woods & blades, now playing with Ping "lookalike" cavity irons & 460 cc woods with carbon shafts, I know which gives the better results !! If the setup & swing ain`t right - no clubs on earth will make an iota of difference .