I realize this thread is very old. I joined here because I had ordered a new food online, basically because it was on sale and I had a coupon. It turned out to be a blessing. My basenji, Ginger, has ALWAYS has COARSE and pokey fur. It was like petting a brillo pad. But after this new food, it is super soft and these rashes that she kept getting on her belly has completely subsided. I don't really know WHY this food agrees with her better, but it does.
I'm not trying to use different flavors of the same brand to see if they work as great for her. I ordered Journey brand dog food, the Salmon and Sweet Potato. I also tried the limited ingredient version and that was horrible. So I'm sticking with the regular grain free. I ordered on Chewy and they have bags at 50% off. You can also get a discount if you sign up to auto ship (which you could later cancel). Anyway, this was a HUGE blessing for me. I've had Ginger for 7 years with 7 years of battling and changing foods. FINALLY, she is eager to eat and is much healthier.