Anyone try or heard anything on the Castor and Pollux Natural Ultramix brand they sell at Petco? I caved in and went in today to buy my puppies their beloved Royal Canin Mini Puppy 33 despite my attempts to keep them on a better quality food and saw lots of premium food like Eagle Pack, Natural Balance, etc.... I came across this brand and remember my friend's kitten eating this brand and loving it. Just wondering what your dogs (and you guys) think of it! Thanks.