so after real players leave, the player creation and development portion of the game amounts to ~23% LHP starts in the mlb. a 25% increase to get to normal is fairly significant. just a matter of quantity created, most likely. ugh if they change that i am going to have to redo my LTMs.... %$#@#@ everythign is fine here... nothing to see.. move along.. # of lefties is just fine!
i can't say this for all pitch combinations... but...
for the most part, RHP do perform better than LHP in ootp -- all other things remaining equal. no idea if that is true to life or not, but definitely the case in ootp for most pitching combinations. you can even see it in the prediction of ERA in the player profile.
i'd assume it's true to life. the batter 'tends' to have the upperhand if they are the opposite handed to the pitcher. lhp v R is the mirror of a rhp v L. it hapens a heck of a lot more to a lefty pitcher than a righty.
i would guess the greater weight to stats in ai decisions will cause less lefties to be used.