I want to hit the ball straighter

Lie in the short and middle irons:

Dynamically fit to the player to ensure center of sole
contact with the ground.

Length:

At least 1 inch shorter for all players, but longer only
for those very tall, short armed players who have been
very crouched and uncomfortable with the previous
length.

Face angle:

At least 2 degrees more open or more closed from the
previous woods to be noticed; direction of face angle
change to opposite direction of flight, e.g. more closed
for slice; more open for hook. Another reference is 1
degree change from the previous face angle for every
5-7 yards of desired accuracy change.

SwingWeight:

At least 2-3 swingweight points higher, more if the
previous set was greatly underweight for the player.

Shaft weight/total weight:

Lighter, but there is no hard, fast rule of the amount
required to make a change in accuracy because the
swingweight must be properly matched to the total
weight for the strength, playing ability and athletic
coordination of the player. Normally, if the previous
shaft was so heavy it was causing accuracy problems,
the shaft weight would have to be reduced by at least
30-40g to show improvement. On the other hand, if the
previous shaft was so light it was causing accuracy
problems, the swingweight would be increased by at
least 3-5 points before increasing the shaft weight to
correct the problem so the total weight would not
increase so much and cause a distance decrease.

Horizontal bulge:

Greater radius if previous face too flat; less radius if
previous face too much bulge. Amount of bulge to be
within normal ranges for all woods.

Grip size:

Large enough to be comfortable for the player
regardless of the distance from fingertips to the heel of
the hand.

Clubhead design:

Weight distribution
More perimeter weighting regardless if the player hits
the ball off center a high percentage of the time. Less
perimeter weighting if the player wants to intentionally
hook or slice the ball more.