I am using the Royal Canin Hepatic LS 14.
If you send me your addy via PM - I will gladly send some your way if you would like to try it out! My two LOVE the kibble and are doing very well on it.
My Vet doesn't stock the RCH either, but order it for me when ever I need it. It does come in a 6lbs small size bag as well
Let me know if you want some to try out?