Hybrid Heater² Design Theory

• Increase shaft weight over original 80 gram model
   
• Higher kick point to keep the ball from ballooning to accommodate USGA groove rules 
   
• Incorporate “Tip to Butt Aspect Ratio” (TBAR) to stabilize shaft integrity for maximum accuracy and “FEEL”.

Hybrid Heater² Shaft Specs

Flex Range	Weight +/- 5g	Length  +/- .5"	Tip Diameter +/- 0.005"	Butt Diameter +/- 0.01"	Torque +/-  .25 o	TBAR Matched
X1	90	41.5	0.370	0.605	2.3	X
S1	90	41.5	0.370	0.605	2.5	X
R1	90	41.5	0.370	0.600	2.5	X

 

SPECIFICATIONS:

Length__________41.5 inches                                 Weight-________90 grams

Kick Point________High                                              Torque________2.4 degrees

Shaft Color_______Black                                             Logo Color______Optic Yellow

PRD developed the Hybrid Heater2 specifically for Tour use, working with two major OEM Tour Vans in this design process. Ball trajectory is vital, a high trajectory (ballooning) leaves the player short and a low (flat) trajectory gives the player too much roll, overshooting the green.

The better ball strike is one that launches the ball a few degrees higher than the loft of the head and carries 80% of the distance to the target and then drops at a 50 to 55 degree angle to the target surface with virtually a soft impact and very little roll, allowing the player to achieve their desired distance with accuracy and confidence with every strike.
PRD golf shafts are designed to improve the player's ball striking ability.