If you look under Taylormade customized options for their irons on their website, they offer the standard Dart graphite shaft but they also offer a Dart "T". I haven't noticed this before, so I wonder if it is a new offering. The Dart "T" has a lower torque rating compared to the standard Dart on Taylormade's site. Could this be similar to the Dart V shaft? They are charging a little more for this option.

