I'm a little confused as to where ball speed should be measured in order to get an accurate estimation of your actual ball speed. A year or so ago, using the crude stopwatch method (i.e. timing the ball from release to impact) my ball speed was right at 17mph. Recently the house I've been bowling league in put in new equipment, which includes sensors down-lane (I'm guessing 10-15 feet in front of the pin deck) that pick up ball speed. According to those sensors, which I trust more than the stopwatch method, it says my ball speed is between high 15 to low 16 mph. But then I've read stuff that says you should measure ball speed shortly after release because the ball will lose speed as it's going down-lane. So which is more accurate? Just curious.....
Thanks!!