I saw these pop up on golfsmith for sale, very interesting.
Callaway Edge 4H-6H, 7-PW, AW Combo Iron Set with Steel Shafts
The biggest R&D team in golf set out to make the easiest-to-hit, most forgiving hybrid iron set that has ever been made, and they succeeded with the Callaway Edge Irons. And for extra bonus points, they decided to go ahead and make them the best-looking hybrid irons in golf.
High MOI Design:
It's incredible, the amount of forgiveness and playability Callaway's R&D team put into the Edge Iron. That's why this set features the highest moment of inertia (MOI) of any set in the Callaway lineup.
High-Launch Hybrid Design:
The higher launch angles created by the optimized center of gravity (CG) location make these hybrids the easiest to hit in the Callaway lineup.
Hollow Iron Design:
Callaway lowered the CG and increased forgiveness and launch angles. They know for sure these are the easiest-to-hit irons they have ever made.
Set Progression:
Distance and accuracy are built into each club, designed for maximum forgiveness and hitting ease.