I believe S&T is a pre-cursor to the warm up...to facilitate getting him warm. I notice that some pitchers take only 3 batters to get ready....while others can be 5. S&T ahead of time cuts down on warm up time when you really need it and it doesn't fatigue them at all like warm up does(if you leave him warming up without using the "keep warm"(forget the actual term in the game) option when he is ready.
M.K.
Knight165

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