Road the main OHV loop at Lake Morena on the Wee-Strom Sunday. If you've never been out there & are considering it the vast majority is pretty tame. 3 on a 10 scale. There were some rocky sections on Corte Madera that were a solid 7 or 8 on a Wee or similar big bike. XR or DR would zoom right up.
Would be great to get a few big bikes out there next time. Makes exploring some of the more challenging stuff less scary.