Hello Bellechat
I'm so sorry no-one posted any response to your enquiry.
My experience with renal diets has been extremely limited and a long while since, I'm fortunate to say, but I can so understand the frustration in trying to get a diet that works for Beau. Thank you so much for sharing your thoughts and experiences. This could be very helpful to other forum members in the future.
It's worrying to see some of the stuff that goes into cat food, and confusing for first-time cat slaves who take an interest in nutrition, let alone where nutrition is a vital part of our cats' well-being for specific health reasons.
Oddly I was out with a mate of mine last night whose friend has recently acquired a shelter cat, and he will only eat burgers or fried fish.
Happily, she doesn't mind catering to his unusual requirements, and the vet has pronounced him to be a healthy boy aged around 7 years, so I guess we just need to pay attention to what works for each individual cat.
I have everything crossed that this switch will work for Beau.
Tell us what Beau is like - I suspect he's a very handsome boy (and big-ish?)