Are the new Head Power Helix models available in the market? http://www.sgb-sports.com/news/fullstory.php/aid/2919/Head.html Head says its four new PowerHelix models - 5000, 7000, 8000 and 10,000 - are 56% more flexible than standard carbon thanks to the PowerHelix spiral structure which runs along the entire shaft, without losing control. The increased flexibility is designed to maximise the power release of shots. Head Power Helix 5000 http://www.newitts.com/product/IT034883/Head_Power_Helix_5000_Badminton_Racket.htm The visible silver PowerHelix spiral in the shaft is combined with HEAD's proven Metallix material in the racquet head and T-joint for even more power and control. The additional Energy Body technology ensures less air resistance to further maximize speed, power and maneuverability. Technology - HEAD PowerHelix, Metallix. Headshape - HEAD Power Frame System. Headsize - 360cm sq. Frame - High modulus graphite 30%, Graphite 70%. Shaft - Hotmelt Graphite 2 piece molding. Weight - 85g. Balance - 285mm. Flexibility - Flexible. Length - 675mm. Benefit - Power & Maneuverability. Recommended String Tension - 22-28lbs. Recommended String/Gauge - HEAD Super Power 69. Head Power Helix 8000 http://www.newitts.com/product/IT034882/Head_Power_Helix_8000_Badminton_Racket.htm Technology - HEAD PowerHelix, Metallix, Energy Body. Headshape - HEAD Power Frame System. Headsize - 360cm sq. Frame - High modulus graphite 70%, Graphite 30%. Shaft - Hotmelt Graphite 2 piece molding. Weight - 86g. Balance - 285mm. Flexibility - Medium Flex. Length - 675mm. Benefit - Power & Speed. Recommended String Tension - 24-30lbs. Recommended String/Gauge - HEAD Super Power 69".