I received minor golfers elbow last summer. I was using an "O" damp the whole summer. The damp does make it feel different; the racquet hitting the ball, but i don't believe it makes any significant difference. I think you get injuries from overuse, not warming up, and improper technique. When i was playing every day 4 hours a day after about 2 months of that i started to feel the golfers elbow.
Now i make sure to get proper rest. No injuries since then. Make sure you do some weight training also just incase.