My concern remains with your never ending switch of food. I understand you are trying to find the best but it seems like nothing feels right to you. Maybe you are right. I wouldn't worry about whether the food was wet, dry, canned, fresh so long as he does well on it.
I cannot tell you what you "should" do and if I did you wouldn't do it. I'm going to guess that in a bit you are going to get fussy about the canned for some reason and switch again.