Yonex is always making great racquets better. The new VCore 100D Gen. 8 model is no exception. More feel+more precision=more control. And, now with more aesthetic appeal. How did they do it? Isometric- Developed over 30 years ago, the ISOMETRIC™ design increases the sweet spot by 7%*. Compared to a conventional round frame, a square-shaped ISOMETRIC™ racquet generates a larger sweet spot by optimizing the intersection of the main and cross strings.ISOMETRIC™ technology delivers greater control without sacrificing power. Aero Trench- To achieve faster head speeds for increased spin potential, the new Aero Trench reduces drag by uniquely hiding the grommets located at the top of the racquet frame. Liner Tech- Newly engineered straight hole grommets allow more string movement on off-centered shots resulting in more spin and control. VDM (Vibration Dampening Mesh)- First used in our snowboards to reduce vibrations at impact, Vibration Dampening Mesh (VDM) is now used in four of our racquet series. VDM is a stretchy mesh material that is wrapped around the graphite within the grip to filter unwanted vibrations and improve touch and precision. 2G-NAMD™ FLEX FORCE- Aggressive, attacking spin for pinpoint control is achieved through a carbon nanotube structure that binds the graphite fibers together, which reduces energy loss. Due to its resilient properties, the material flexes and provides quick snapback. Namd™ is technology developed by Nitta Co., Ltd. to uniformly disperse carbon nanotubes in carbon fiber composites. Servo Filter- A transparent and elastic film placed between graphite layers helps bond the layers while maintaining its elastic characteristics even after the molding process. This unique film absorbs unwanted vibrations, provides fine-tuned flex and snapback to each shot,delivering precise sensory feedback from the ball to the hand. SERVO FILTER is a vibration-absorbing film developed by the Mitsubishi Chemical Group, which has high bonding properties with graphite and excels in both flexibility and durability Specifications: Headsize- 100 s.i. Weight- 305 g / 10.8 oz (unstrung) Length- 27 in. Balance- 315 (unstrung) Beam- 23mm / 23.5mm / 22mm String Pattern- 16 x 20 Ray's assessment- This is a great option for an intermediate/advanced to advanced player. Looking for a little more heft and precision than the average 100si/300g frame?The VCore 100D Gen.8 has it all: access to spin, good precision, solid feel, and a little pop for the big serve. You have put in the hours on the ball machine and taking abuse from a relentless coach who saw your potential. Now you are finally putting your solid mechanics to proper use and getting results. Your other 100si/300g racquet just has too much pop and too little feel. Well, the Yonex VCore 100D gen. 8 might be for you. Use Yonex PolyTour Rev as a whole set or blend it with Tecnifibre Razor Soft in the crosses for a little more pocketing. If you used the Gen. 7 model, you will find the v8 a little softer with a a bit more pocketing. This racquet provides a little more touch and whip. So, go out and get that kick serve and drop shot working in a way you never thought possible.