Found it at this website:
A little too long and complicated, but the conclusions were interesting to me atleast. It may not be too interesting to you guys, but since 2/3 of my time in school I use physics, its nice to see it used for something useful. biggrin.gif
The aim of this study was to establish an optimum strategy
for hitting a baseball. The results we have presented show
~1! It is important to utilize impact and flight models that are
as realistic and complete as possible. Without accurate
simulations, optimization is pointless. Our flight model
includes the experimental lift and drag coefficient dependence
on Re and spin parameter. The impact model treats
collision relative velocity as a function of impulse and
incorporates the dependence of the energetic coefficient
of restitution e* on the impact relative velocity and the
dependence of the pitched ball angle with the horizontal,
g, on pitch speed.
~2! The bat–ball coefficient of friction m is near 0.50 for
wooden bats and 0.35 for aluminum bats.
~3! Within a realistic range ~0.35–0.50!, the value of mdoes
not affect batted ball spin, velocity, or launch angle.
Therefore, any effort to increase backspin on the batted
ball by increasing mis futile.
~4! The batted ball clearly goes through the drag crisis. The
resulting sharp reduction in drag leads to ranges considerably
larger than would be achieved with a perfectly
smooth ball which would experience drag coefficients
near CD50.5 for much, if not all, of its flight.
~5! There is an optimal strategy for achieving maximum
range. For a typical fastball the batter should undercut
the ball by 2.65 cm and swing upward at an angle 0.1594
~6! The optimally hit curve ball will travel farther than both
the fastball and knuckleball, because of beneficial topspin
on the pitched curve ball that is enhanced during
impact with the bat.
~7! Range is most sensitive to bat speed, which suggests that
a batter ought to work on bat speed before anything else
to increase the range of his/her hits.
~8! Range is not very sensitive to wrist roll. Attempts to roll
the wrists on impact do not increase range enough for it
to be a useful and advantageous strategy. Wrist roll may
actually limit bat speed, which is clearly more important.
~9! For a given pitch type, range increases with pitch speed.