We recently rescued a 1yo GSD. It's been about 10 years since we owned a dog and dog food has come a long way in that time. My problem is this, I started my guy on Eukanuba no problems, nice firm stools. When I found out that there is now much better food on the market I switched to Blue Buffalo, since the switch he hasn't had a solid stool. I blended a bag of Eukanuba into the BB and it improved. My question is , do you think it is worth it for me to continue with BB when my dog seems to do better on Eukanuba?