I have been working on a research project to determine if the materials the ball is made of affects the distance gained.  After choosing the Titleist brand of balls (Pro V1x, Pro V1, NXT Tour, NXT Tour S, DT SoLo) I am looking at how Titleist tests their golf balls.  Also I need to test them in a controlled environment and would be grateful to learn how Titleist tests theirs. Any suggestions...