I agree with a lot of what you're saying kmoose. I have been heavy on the grain-free bandwagon for several years now, but lately I am also wondering if maybe it's like feeding a (human) couch potato a body builder's diet.
I'm still waiting to hear if I can get Acana at wholesale pricing. If so, I'm going to give it a try. I will spend the "extra" money on feeding some raw meats. I think I'mm going to cut out the Tripett too, which I think has little or no noticeable benefits - at least in conjunction with my dogs' current diets.
Roxy - Feb 2005 - 75 lb American Staffordshire Terrier (adopted Jul 2011)
Peewee - Jan 2006 - 8 lb Chihuahua (adopted May 2009)
Myka - Nov 1998 to Jan 2010 - 85 lb American Pit Bull Terrier cross
Lacy - Sept 1992 to July 2003 - 18 lb Reg Shetland Sheepdog