[jim_0068]

hit the ball on the speetspot and you'll get a moderate launch with a decent amount of spin and a really good ball speed. For analogy see below:

10* launch, 165mph, 2800rpm

hit the ball higher on the clubface and you'll get a much higher launch, with a slightly lower ball speed and really low spin:

13-14* launch, 163mph, 2500rpm

Launch monitors have shown that the slight decrease in ball speed is warranted by the extra distance the slightly higher launch and lower spin provides.