I have purchased a racket with a 4 5/8 grip size. It feels fairly big compared to my 4 3/8 grip that i'm used to playing with. I was wondering if there are any advantages to either of the grip sizes or is it purely what you prefer. I like the bigger grip size, but when I serve, I don't quite get that whippy feel that I have with the smaller grip size. Although, I still hit it fairly well. I'm playing with a Dunlop 300G with 4 3/8. and I am switching to it's replacement, the Dunlop M-Fil 300 with 4 5/8. Both rackets are fairly light and have a fast swing. Any comments would be appreciated. Thanks.