This is to all those who replied to my original post. What I was trying to convey is this: with the dots on the approach to guide you, you start at exactly the same spot. All of your logical replies leave open the EXACT spot you sart at because there are no additional starting spots on the approach. AS I think about it WOULDN'T it mzake huge sense to have perhaps 3 sets of dots to guide various bowlers? If a bowler is off with his feet a few inches along with all the other variables, I would think predictable results become increasingly difficult. Any thanks for all the imput.