I'm thinking about switching Abby from regular dog food to performance dog food. As with the spring and nice weather on it's way I will be working Abby more in agility and have been researching that a high performance dog should have a performance dog food w/ omega 3. Any suggestions? Oh yeah, and this food has to be found at Petco as that is where I buy my dog food. But if it's not then just tell me the name and i'll look it up and see if theres that food dealer around here. I have looked but nothing rings a bell, the only one I really liked was Sensible Choice Endurance but it didn't have Omega 3 in it and the food i'm feeding her now has better foods listed in the ingredients.