Length of Shaft
This is one of the most vital aspects of the fitting. You don't want a junior player feeling cramped when he has to stand too close because his clubs are short, and you don't want him standing too far away because the clubs are too long. A good fitting will determine how long the shafts should be.
Stiff Shaft or Regular Shaft
Most young players need help with both power and accuracy. However, a fitting will determine which aspect is more important. If the junior player is on the tall side and can usually generate enough distance, stiff shafts will probably be in order because they offer more help with accuracy. A smaller player who hits a straight ball will turn to regular shafts because they are more flexible and provide more club head speed on impact.
Many junior golfers will benefit from low-profile clubs because they are easier to control and can help a golfer get the ball in the air easier. This is especially important when talking about long irons, fairway woods or hybrid clubs. Top-level junior players will also benefit from the ease that low-profile clubs provide, but they also may like the larger face clubs that are more forgiving and usually offer the golfer more distance.