Great question Norm, my first race there was just last year, so I've been riding last year's course, and then switched it up today, thinking it was a simple reverse. Then I ran into a Marty's rider (Paul) and he said there were a few different changes which he tried to show us. The Dark Horse guys kept pace with him, but us slow pokes lost them right around the point which would typically be the switchback just after the bridge you hit after the fire road climb up from the pavilion (not the first bridge, but the second).
I'm still unclear on the whole course, but presume the start will still be in the vicinity of the pavilion, but going back towards Sunrise Lake, then up the flowy section that's usually the fun finish. I don't think I'm helping here, but someone told me at Marty's yesterday that it's the course that was originally run many years ago.