Sometimes it's better to let the lefty swing against the lefty.....even though coventional wisdom tells us the odds are against it. MOST times it's NOT, though. Knowing the difference is the key to the the deer "falling". You just HAVE to know who's on the mound and know the hitter's abilities are (has he been hot? ....i.e. good weather? Good wind? Good timing?). I need to learn when to stay on the bench and when to grab the bat. But if I grab the bat.....I need to have a DAMNED good idea of whats coming.