The PING AWT (Ascending Weight Technology) steel iron shaft in a "soft regular" flex is a lightweight steel shaft designed for a mid-high launch and increased spin. It's specifically engineered to help golfers achieve a higher ball flight and optimal spin rates. The regular flex version typically weighs around 98 grams. AWT shafts are designed with a lighter weight in the longer irons to promote a higher launch and a heavier weight in the shorter irons for better control. 

Here's a breakdown of the specifications: 

• Shaft Material: Steel.
• Flex: Soft Regular.
• Weight: Typically around 98 grams for the regular flex.
• Launch: Mid-High.
• AWT (Ascending Weight Technology): Longer irons are lighter, shorter irons are heavier. This helps with launch and spin in the longer clubs, and control in the shorter ones.
• Tip Diameter: .370.
• Suitable for: Golfers who want to launch the ball higher, generate more spin, and achieve a higher trajectory.

 The PING AWT 2.0 steel iron shaft in X-stiff flex weighs 119 grams and is designed for a low-mid launch angle. This shaft is part of the AWT (Ascending Weight Technology) family, where the weight of the shaft increases with the shorter irons in the set, offering a lighter feel in the longer irons to promote higher launch and a heavier feel in the shorter irons to promote a lower, more controlled trajectory.

Key Specs:

• Flex: X-Stiff
• Weight: 119 grams
• Launch Angle: Low-Mid
• Tip Diameter: Typically .355 Taper (but some may be .370), according to golf equipment websites
• Material: Steel
• Technology: AWT (Ascending Weight Technology)