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Hot Launch E523 Irons
These hollow iron-wood designs put a major emphasis on ease of launch, playability and
correcting miss-hits and slices to go straighter for the ultimate in ease of use.
The improved hollow-body design of the Hot Launch E523 Iron features the game-changing
Houdini Sole in conjunction with a super-shallow face, slice-fighting offset designs and heel
weighting for added draw bias.
FEATURES
HOUDINI SOLE TECHNOLOGY
Reduces turf interaction by 35% and dramatically moves weight low and deep for extreme playability
HOLLOW BODY PERIMETER WEIGHTING
Creates distance properties of a metalwood for maximum ball speed and distance
SLICE-FIGHTING OFFSET DESIGN
Squares the club for draw bias that keeps tee shots from going right
NEW CONCAVE TECHNOLOGY
Creates a smaller topline and a less visible back end at address for our best looking iron-wood to date
SUPER SHALLOW FACE
The super-shallow face is designed for extreme playability and high-flying launch characteristics. The extremely shallow face produces higher launch angles and extreme ease of launch with extreme forgiveness
SPECIFICATIONS
| Club | Loft (*) | Lie Angle (*) | Length (") |
| #3 | 20 | 60 | 39.25 |
| #4 | 23 | 60.5 | 38.75 |
| #5 | 26 | 61 | 38.25 |
| #6 | 29 | 62 | 37.75 |
| #7 | 32 | 62.5 | 37.25 |
| #8 | 36 | 63 | 36.75 |
| #9 | 40 | 63.5 | 36.25 |
| PW | 44 | 64 | 35.75 |
| AW | 49 | 64 | 35.50 |
SHAFT SPECIFICATIONS
The UST Mamiya HL-SST graphite shafts feature Stabilized Shaft Tech, a softer tip, and a mid-range flex. Stabilized Shaft Tech is an added cross weave that reduces ovaling for better stability during the loading and unloading of the shaft.
The True Temper XP-85 steel shaft is designed to deliver maximum peak trajectory for explosive distance and are an excellent option for players wanting a higher ball flight with a moderate ball spin.
| Model | Flex | Weight (g) | Launch | Torque (*) |
| UST Mamiya HL-SST 50 | A | 49 | High | 4.1 |
| UST Mamiya HL-SST 45 | L | 49 | High | 4.5 |
| UST Mamiya HL-SST 55 | R | 59 | High | 4.0 |
| UST Mamiya HL-SST 60 | S | 65 | High | 4.0 |
| UST Mamiya HL-SST 60 | X | 65 | High | 4.0 |
| True Temper XP-85 | R | 85 | Mid/High | 3.0 |
| True Temper XP-85 | S | 85 | Mid/High | 2.2 |