I have a quick question. Whats the difference in ball reaction when you have a ball with a short pin compared to a ball with a longer pin? I hope the this question makes sense if so can you please help.

Someone much smarter then me once wrote:

Shorter Pin= less flare and a more arcing motion
Longer pin= More flare and a more angular motion
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Hit them light and watch them fight
      J O E - F A L C O

The old conventional wisdom is that shorter pins are earlier and more even while longer pins go longer and are more angular.

Whether that's true anymore is anybody's guess.

I think a better way to think about it is that longer pins, in the interest of making static weights easier to manage by keeping the CG close to the midline, tend to get laid out with the pin higher, promoting length and a more angular reaction.

Conversely, balls with short pins tend to get laid out with the pin lower, again, promoting an earlier and smoother reaction.

SH