It just makes sense that no golf ball is perfectly balanced when it leaves the factory. After all, no manufacturing process is so accurate that each and every product comes off the line an exact duplicate of the one before it or after it. While solid mass balls, like pool balls, can be perfectly balanced, attempts to evenly distribute weight uniformly throughout a golf ball inevitably fail a significant portion of the time. And what’s worse, it’s impossible to tell just by looking exactly where the weight is distributed within the ball. Every golf ball you hit has a high chance of flying through the air or rolling through the grass with a distinct wobble. So it won’t go as far or as accurately as possible.
There is a popular myth that the logo on a golf ball marks the ball's sweet
spot. Actually, the logo is stamped on whatever part of the ball is
facing the imprinting equipment and has nothing to do with the ball's sweet
spot.
The process that has come to be called “spin balancing” attempts to compensate for the lopsided-ness that comes from weight irregularities. While rotating at over 10,000 revolutions per minute, the ball spins in all directions until it finds its optimal balance point.
In less than half a minute, the ball settles into the ideal position for the golfer to mark the equator of the ball at this ideal balance point. It is this point of reference that allows the golfer to align his ball appropriately for the greatest distance and accuracy.
To be accurate, spin balancing does not change the balance or the weight distribution of the ball at all. What it does is allow you to identify and mark the equator of the ball that indicates the best possible flight alignment for the ball. Once the ball is marked accurately and the golfer conscientiously aligns the ball in play, the ball will deliver longer, straighter drives as well as more accurate tee shots and putts.
Of course, spin balancing does not eliminate golfers’ mistakes but consistent use of spin balanced balls can shave one or more strokes off your handicap. And, it is important to note that the use of spin balanced balls is perfectly acceptable in all circumstances and does not violate USGA rules.
