Yonex VCore Team rackets have been long regarded has one of the best value rackets. This latest Si update comes with a Bt Hybrid String Grommet which gives this racket 7% more spin on your shots. Bt Hybrid grommets allow mains to move more freely in parallel direction whereas crosses are allowed to move more freely vertically. This allows the strings to bite the ball without widening the gap between strings. The result is a more responsive string bed which executes spin but has a regular string pattern which nearly all pros prefer because it allows more feel and control. The next generation 3D Vector Shaft has grooves starting from the bottom of the throat and extending all the way up to the frame. These corrugation significantly improves the structural strength (bending strength) so that the frame doesn't twist with ball impact, helping you hit with comfort and confidence. VCore Si Team fits the bill for any young beginner or intermediate players. It gives them plenty of feel and control on the ball while they can generate the power themselves.