i have found that when you are feeding such a high quality of food.. like you are ... the change in the different brands done'st seem to bother layla... so i'd go day by day... see which type she eats more of... some she will probably turn her nose up at... we've been doing the same with layla and wet food.. she HATED Wellness wet food and now is on GO.. and loves it! good luck ... sounds like a great mommy to me