OP here--
julianfranco - awesome thanks! firecrest or prior model? Great location you have there... I rode Cycling Escapes climbing camp last year out of Agoura Hills, with all those loops off Mullholland - awesome roads!!!! I was actually thinking about Deer Creek Road as I consider the heat build-up issue, I definitely braked the entire way down that thing, there aren't that many roads like that, but when you get on them, wow, yeah, I am braking!!!!
mr. boyd - what do you think, does my light weight (110) mitigate my tendency to brake a lot on descents, in terms of using a carbon clincher? I'm not asking for a guarantee, just a gut feel. Your offerings are interesting, but I think I already mentally committed to brand Z.