The benefit of any clubfitting session is to equip the golfer with a set of
specifications which allows them to achieve their highest level of performance- without the need for compensation.
If your set is too long or short, too heavy or light, too stiff or flexible, or too much of anything, then you must alter your body, swing or game in order to compensate for the ill-fitted equipment.
The #1 player in the world recently said that his Dad never let him play with clubs that did not fit him. He was interested in having him develop a proper swing. He urged all golfers to find a proper fitting, or the alternative is that you will be forced to make swing concessions.
I believe that if a golfer understand the relationship between properly fitted equipment and sound swing fundamentals, this game becomes easier to play.