Ok rocketblades, so just checked the specs, TM seem happy to share, but us lot seem to ignore. Lets take the 4 and 7 as example.
Rocketblades 4 iron - 20 degrees, 38.875 inches long.
Mizuno JPX825 4 iron - 23 deg, 38.25 inches
Titleist AP2 4 iron 24 deg 38.5 inches
Im not even going to compare the 7s after all its obvious where im going.... Speed slot bollocks, longer shafts and less loft.
Note the tour version has more loft and is shorter than the hackers version, still stronger than most though...