To anyone that is still interested, I figured out how to make batters left or right handed. in the byte where you put the Running Ability, we knew that the number gets divided by 2 and 1 is added to it. So if you want a "5" in running you put an 8 in the byte, it is divided by 2 to make 4 and 1 is added to make "5". HOWEVER if you want a left handed batter, the number that you input has to be odd. So if you want a "5" in running but you want them to be a lefty you put an 9 in the byte, it is divided by 2 to make 4.5 and 1 is added to make 5.5 or "5"
A and B are for "6"
C and D are for "7"
E and F are for "8"