Just wanted to chime in here with my own replies to the original post regarding Avons and sizes.
Like sd427 and TimG427, I got my Avons from Roger Kraus.
And like CLV8, I got a set of CR6ZZ, with 245 up front and 295 in the back.
And while I dont have much to compare them to yet, they seem to hold a line.
So far, so good anyway.
Thanks to all who contributed their insights and experience to this thread!!