Whenever I hit the ball hard especially when I miss the sweet spot my racket is dislodged slightly in my hand. The problem is intensified when my hand becomes sweaty and the accuracy of my shots suffers greatly.
I started wearing a sweatband which did remedy the problem a little, however the grip is still far from satisfactory.
How do I achieve a better grip?
Have you tried wrapping something over the base grip of your racket? Some people use gauze and can also buy overgrips which are meant to absorb moisture and provide a tacky feel. If you tend to play with loose hands overgrips can really help. These things I am describing (gauze and overgrips) are generally very thin and don't increase the overall size of the grip that drastically.
