from sprinting? My Baby star is always fighting the bit, she shakes her head,and all that bad stuff. What type of bit would be better on her. Also when i first got her she needed to add some weight, so i added Dumor's weight booster to her feed, ever since then when i mount all she wants to do is trott or a full gallop, never walk anymore. Could it be the weight gainer giving her more energy. Any Suggestions