>      First there is flex: the amount of bend it has such as x, s, r, m, a, l, as labeled on the shaft. This is usually the same but may differ per brand.
>      Flex point must also be taken in to consideration. Generally the higher the flex point the lower the ball flight. The Lower the flex point the higher the ball flight.
>      Torque is the amount of twist in a shaft. The higher the torque the easier it is to twist. Usually the faster you swing the lower the torque you need. Usually the higher the torque the higher the ball will go.
>      Shaft weight can be a crucial measurement. They can vary from 124 grams for regular steel to lite weight shafts of 45 grams for some graphite shafts.
>      Butt diameter refers to the grip end of the shaft. The butt size will have an effect on the size of your grip.
>      The tip diameter is the end where the club head goes. The tips can be parallel or tapered, but unless you are going to make you own clubs you don't need to know this.
>      The length of shaft refers to the length before cutting and trimming. This is the raw size of the shaft.
>      You can cut most shafts at both ends. Read the Manufacture's Suggestion to determine which end to cut to make the shaft stiffer or less stiff which will make the ball flight higher or lower.
>      Ball flight is the trajectory of the flight of the ball, either high low, or mid. Typically the faster you swing the higher your trajectory will be. The slower you swing the lower your trajectory will be.
>      Tip parallel is where the shaft maintains the same diameter and can suggest where to cut the shaft for the tip.
>      Again this is not you concern unless you re-shaft your club or are putting together your own clubs. Finally if you get fitted for your clubs these are several of the things they will consider.