I am the same -- REALLY wanted Fromm to work. So kept trying. To no avail.
His poops always got softer, eye goop would get bad, and he'd eventually get itchy.
So anyways we've had fabulous luck with Acana, but we actually just bought a bag of Canine Caviar today because I had a coupon. I really like their low ash simple formulas, so we figured we'd give it a try. Also, modest protein/fat. But Jackson always has done very well on Acana, he does the best on their Singles line, but the grain-free gives good results too.