Also, has anyone heard anything on the Diamond? I never fed it, but I heard a few people talking about it in my dog class.. I didnt catch what they were saying, but it wasnt positive... almost like they just found out about something to do with it.
Yes, I've heard of some big time problems with Diamond foods, and most people won't go near it. Apparently they have switched to many substandard fillers and the line just isn't good. I don't know all of the details either, but the bottom line I've heard is to stay away from anything made by them.
Dobiegirl, as a rule of thumb, I stay away from anything with too many fillers; especially things like wheat gluten (read avoid at all costs), different grains used as fillers, and meat low on the list of ingredients.
If you go to the link I provided above to pet food analysis, you can read the reviews on some of the 6 star foods to see what they look for, then look at some of the lower rated ones to see what to avoid. I know, it is daunting at best, and with limited availability, it makes it even harder. Out of the ones you named, the Chicken Soup is probably the best one, but if he doesn't like it, that's a whole other poser in itself....
Burly soldier, the Orijen is an excellent food (good for you!) and it may just take him some time to adjust from his old food. It's also not uncommon for new pups to get the runs after being placed in a new home. The traveling, drinking different water, getting used to the new routine, and adjusting to new everything can easily do that to them.
Hopefully your vet will have some suggestions for you when you bring the stool sample in.
Keep us posted.