I agree with Wiley re your race program (sprint) Three things will win you sprint races (old birds) 1)the right system. Widowhood would be my first choice, natural my last. 2)the right pigeons. If the route you fly is from the south west where velocities are generally high you need to house out and out sprinters. 3)the right feeding. Feed light, by that I mean a mix without peas/maples/beans. I could add a 4th and that is position but that's something you cant do anything about. If at all possible I would look at having a 2nd loft to race your old birds out of.