I understand what you are saying, but I wouldn't say she has "issues." Maybe the way I wrote about her scratching her eyes seems exaggerated, she only right now does it a bit in the morning, like waking up to get the "Crusties" out of the eye. Like I said she did it a bit more last summer, and I was going to ask the vet about allergies, but then it stopped so I decided to wait until what this spring will bring.
We have had her exactly one year today, and (knock on wood) she has been EXTREMEMLY healthy, great appetite, great bathroom habits, I really can't say how she could be better. We have never been to the vet other than for routine shots, etc. So, I am not saying you are wrong or anything, I just don't have much motivation to switch because he likes her food and is a very healthy dog. If I see anything to indicate otherwise I would definitely be willing to switch, and I will definitely be talking to the vet if her eye scratching comes back with the warmer weather