When I first started training with Derry I would hit 240 yards on the golf course and the ball could go left or right. After a short while of training with Derry I had increased my drive to 300 yards and was much more accurate with the ball. I found through his training methods that I had improved power balance and accuracy. This helped me be a better all round player as my short game had improved also. I noticed my stamina increased enabling me to get round the golf course easier. Most importantly my par went from a 16 to a 12. I would highly recommend Derry to anybody looking to improve their sports performance or to get fit in general.