They stopped making the grommet strips for my ncode tour 90's, so now I have to change racquets. I'm going to purchase some BLX Tour 90's, but I'm not sure about the grip size. I have been playing with a 4 5/8 for years, but when I tried the demo, I liked the smaller grip size of 4 1/2. I have a big hand, but I like the smaller grip size. There is no space between my fingers and palm when I grip it. I'm wondering if a smaller grip size like that might cause elbow problems or other problems for my arm. Thanks!