Golf Iron Reviews 2010

What is the difference between the 2004 Callaway Big Bertha Diablo Irons and 2010 in Edge?
I heard that there are many improved technologies in golf irons, drivers and hybrids in the last 6 years. What part of that marketing, and how much is real? I have read reviews that say each year more forgiving irons and hit the ball farther … but anyway, it's not just marketing BS?
The only technology "improvements" are to strengthen the lofts (A * June 29 iron instead of 31 *, for example) and an increase in club lengths in general. This, in theory, makes plans for longer (loft * 2-3 to no nothing) … but also to a loss of accuracy (which plates are designed for first place.) Of course, these tests are performed on the robots to do, unless you're a cyborg, you can not to swing and even again and again … but do not feel bad, even the PGA professionals (including Tiger Woods) can either. If there's something really important, I think it's more of tungsten in the sole of the iron head. Tungsten is a heavy metal, adding to the center of gravity will the club, helping golfers mood not so good to get the ball in the air. If you have above average ball very location capability good, there's really nothing to improve your game than a custom fit. It's a way to make them more severe, but causes unsightly clubs. The thickening of the criterion top line, thicker and in an enormous piece cavity (like the yellow … The Return … on Nike Sumo iron) can help. But in general, "technology" is so intrusive to the eye to the existence of a lack of confidence. Not only that, a poor swing results are bad, regardless of what "technology" is present. There is no "magic bullet" in golf.
2010 Mizuno Golf Irons and Wedges Preview Video