I am hoping this question is entirely unneeded on a group like this, because you're a big step above the knowledge we've encountered elsewhere. But just in case -
ARE YOU GETTING YOUR PUPPY BUYERS OFF GRAIN FREE/BOUTIQUE/EXOTIC FOODS? IF NOT, DO IT THE HECK NOW.
I can't tell you the number of absolutely gutted and grieving dog owners I've dealt with over the last six months. You have a responsibility to get your own and your purchasers' dogs on safe foods now, until formulations can change and the AAFCO can address the huge problems in boutique foods.