Particularly if your racing.... your saddle position should be set so that you are properly "perched" on the bicycle. That position should allow you to easily stand, slide back (even to a position behind the saddle), use your thighs to grip the horn of the saddle.... and so forth.

People do too much sitting on the saddle. If the cycling is just sitting on the "seat".... those setting may be slightly different. And sitting comfort would be most important.