From 2008 GOLF Magazine ClubTest
We tested: 4-9, PW, AW in Speed Step SL steel shaft. Shaft length/loft (6-iron): 37.75"/30°
Company line: "Our 'PowerBow' design and ultra-light Cryo Steel face [in 4- to 7-irons] deliver an expanded COR and high moment of inertia. The polyurethane insert [yellow] in the back cavity dampens unwanted impact vibration."
Our Test Panel Says:
PROS: Good directional forgiveness, enough control and accuracy to keep you in play on slight mis-hits; clubface delivers respectable distance on well-struck tee balls; Attack wedge is a useful short game tool; significant upgrade over original Slingshot in terms of look and feel; blows through light rough; plenty of sole weight gets shots airborne easily.
CONS: Heel or toe hits cost you distance; feedback to the hands could be more than some people are looking for; sweet spot seems smaller than many others tested; yellow insert in the cavity detracts from the club's overall appearance.
"Well-balanced head cuts through light and medium rough." Jim Esther (20)
"We have taken the premise of geometry that we started with in the original Nike SQ driver and are evolving it across our club line," said Tom Stites, director of club creation for Nike Golf, in a media release. "With this new geometry and its high MOI, we have created what we believe is the most forgiving iron Nike Golf has ever developed."