I agree. My three little girls are already on large fuzzy/small hopper/large hopper and they are ALL slow growers (just my luck). But even then, they didn't stay on pinkies for more than a few weeks.

My advice: Get a pack or two of fuzzies and stress that they should 'run the gambit' of weight/size. That way, you'll have smaller fuzzies to start with and larger ones once they've grown a bit.