Glad to hear that avonNOVA ( I like palindromes too) are currently concentrating on hillclimb tires, since they are the ticket for USA-stye autocrossing a Caterham.
The Yokohama 052 works well-enough for a dual-purpose street/autocross tire on a Caterham, but it does not not give the stick of an Avon hillclimb tire.
I could not heat Hoosier A7 tires autocrossing my Elise, so I can't imagine they would work any better with a Caterham.