Anyone racing the Shenandoah Mountain 100 in Virginia on Labor Day weekend? http://www.mtntouring.com/mountain/h...page_sm100.htm

I'm planning on racing it, my goal being to finish, not to podium. My training schedule consists of about this:

Every-ish weekend: 70-80 mile road ride
Every-ish Wednesday: 40-50 mile MTB ride

Other days will be about 20 mile MTB or 40 mile road. I'm thinking I'll also do a full century on the road about 4 weeks prior to the event date, just to see where I stand. I'm wondering if I should be bothering with any really long (60+ mi) MTB rides...