Fresh, regular duty balls are recommended. There is no conclusive evidence that one type of racquet is better than another. Gut is more resilient and slightly better than nylon, but the cost difference does not really justify the small advantage. Therefore, use 16-gauge nylon. A correct hand grip size will produce less stress.
Most players tend to use a handle that is too large.
The proper size can be determined by measuring the distance between the tip of the ring finger and the first palm crease. As a last resort, surgery may be necessary in a patient who is resistant to treatment. The surgery is relatively simple and frequently effective. However, most people recover without an operation. To conclude, tennis elbow can be a difficult problem but it may be alleviated by thoughtful medical and technical measures.