My step-father ran a 60 ton steam powered drop forge for John Deere for 40 years. He said his family could feel when he was running it from miles away. Of course this is a fun thread, but I found after having a set of Callaway Fusion Pro irons, with their Titanium face insert to be a complete surprise. Easily, the longest irons I have ever hit, but the faces have virtually no wear after 10 years. As far as feel, the Titleist 681 irons I owned were the best feeling ever, but even the best shot never had near the distance of the Fusions, Albeit, the lofts were stronger with the Fusions, but the Ti faces have far more pop.