Pin out has nothing to do with ball reaction. However, some layouts are easier to do with specific pin out ranges, especially if the customer doesn't want a balance hole. For example, 1 - 2" pin outs are easy to lay out with the pin under the fingers, which makes the ball break earlier. 3 - 4" pin outs are easy to lay out with the pin over the fingers, making a later break. But as long as you're willing to use a balance hole and allow deep drilling of the thumb or finger holes you can use most pin outs for most layouts. -- JohnP