From: Research Laboratory of
A.G. Spalding & Bros. Inc.
Chicopee, Mass.

EXPLANATION OF "STING" PHOTOGRAPH

The picture represents a topped iron shot
in which contact has been made with the ball at the sole
of the club, well below the center of gravity of the
club head. In the first position immediately after con-
tact it will be noted that a quite perceptible bend has
been produced in the lower half of the shaft. The uni-
form intervals between successive positions of the grip
end of the club up to this point indicate that the accel-
eration of the grip end has been smooth,

In the second position after contact, the bend
of the shaft has progressed as far as the lower end of
the grip; and in the third picture it has reached the
hands, The widening of the interval between successive
pictures of the grip end of the shaft indicate the very
rapid acceleration in this end which produces the sting-
ing slap on the player's hand, The effect of this ac-
tion is further confirmed by the fact that a player
feels a mis-hit iron shot in the hand in contact with
the advancing (or front) part of the grip. If the club
is gripped properly, this is the left hand: the club
Slaps forward against this hand rather than backward
against the right.