A repeatable swing is the bench mark for all lower handicap golfers. With a repeatable swing you know where the ball is going, and how far it is going. With a repeatable swing, using non fitted clubs, the ball may go left, right, or center most of the time, based on what the club is doing through out the swing. It is my belief that the same thing can happen with fitted clubs, but not having a repeatable swing. The club fitter says you need this or that based on a few swings, but with out a repeatable swing, the club fitter won't be able to narrow down the actual specs needed for a golfer. Ball flight might be more consistent, only when the golfer swings like the swing used while being fitted. My swing has changed over the years from a stiff flex, standard lie, to a regular flex, and 2* up right lie. I don't hit the ball as far as I use to, but I still have a "some what" repeatable swing, which gives me a "some what" repeatable ball flight. The only time my ball flight changes is when my swing (rhythm) tempo, timing, set up and/or ball position changes from my repeatable norm. Since I do not play, or practice everyday, I do not have a 100% "repeatable " swing every time I make a full swing. I'd be happy having a "repeatable" swing 40% of the time.