Wildcat can definitely be crowded if you don't leave really early in the morning. It's also pretty bumpy. I'll probably give your route a try next time I go out. On Sunday I did the loop I just described in order to break in my new 1-piece leathers.
![waytogo](http://ducatimonsterforum.org/Smileys/classic/waytogo.gif)
For whatever reason, coming down wildcat just makes me uncomfortable. Too steep and slow and weird intersections. It was better on the monster than the 851, and this being a monster board I suppose that's appropriate, but it still always made me nervous.
It is very pretty though.
Marsh Creek has too much traffic for me. Too many hyper-commuting east county drivers, I guess.
Also, if you want a tight road, you can go over to Mt Diablo and ride that. It's like $3 (?) but actually really pretty fun. Come in off Diablo and go out Northgate. Very pretty.